# HTML5ANDCSS3

> Learn HTML, CSS, JavaScript, and modern web development with practical tutorials, examples, certificates, and fast browser-based developer tools.

HTML5ANDCSS3 provides practical web-development lessons, tutorials, articles, examples, certificates, and browser-based developer tools.

The complete XML sitemap is available at https://html5andcss3.org/sitemap.xml.

## Main sections

- [Home](https://html5andcss3.org/): The main HTML5ANDCSS3 learning portal.
- [Tutorials](https://html5andcss3.org/tutorials/): Browse all web-development tutorials.
- [Developer Tools](https://html5andcss3.org/tools/): Browser-based tools for developers.
- [Try It Editor](https://html5andcss3.org/tools/try-it-editor/): Write and preview HTML, CSS, and JavaScript in the browser.
- [Insights](https://html5andcss3.org/insights/): Web-development articles and updates.
- [How to Use](https://html5andcss3.org/how-to-use/): Guidance for using the learning platform.
- [Certificate Verification](https://html5andcss3.org/certificate-verify/): Verify a certificate issued by HTML5ANDCSS3.

## Tutorials

- [HTML Tutorial](https://html5andcss3.org/tutorials/html/): Learn HTML from the original HTML5andCSS3.org tutorial chapters, A complete step‑by‑step HTML tutorial with interactive examples and live Try‑It editor.
- [CSS Tutorial](https://html5andcss3.org/tutorials/css/): Learn CSS from first principles through modern layout, responsive components, accessible interfaces, animation, performance, and production architecture.
- [JavaScript Tutorial](https://html5andcss3.org/tutorials/javascript/): Learn JavaScript fundamentals including variables, functions, conditions, arrays, objects, and DOM interactions.

## Lessons

- [Introduction to HTML](https://html5andcss3.org/tutorials/html/introduction-to-html/): HTML Tutorial: HTML is the standard language for creating web pages. In this introduction, you’ll learn what HTML is, how it works, and why it is used.
- [HTML Editors](https://html5andcss3.org/tutorials/html/html-editors/): HTML Tutorial: HTML code can be written using any simple text editor — you don’t need fancy software to start. However, as you progress, using an HTML...
- [HTML Structure](https://html5andcss3.org/tutorials/html/html-structure/): HTML Tutorial: Every web page on the internet follows a specific HTML structure. This structure defines how a browser reads and displays the page’s content...
- [HTML Elements & Attributes](https://html5andcss3.org/tutorials/html/html-elements-attributes/): HTML Tutorial: HTML pages are built using elements — the building blocks of a web page. Each element defines a specific part of the content such as...
- [HTML Headings](https://html5andcss3.org/tutorials/html/html-headings/): HTML Tutorial: Headings in HTML define the titles and subtitles of a webpage. They help organize your content, improve readability, and play an important...
- [HTML Paragraphs](https://html5andcss3.org/tutorials/html/html-paragraphs/): HTML Tutorial: Paragraphs are the foundation of text content on any webpage. In HTML, the tag is used to define a paragraph — separating blocks of text and...
- [HTML Formatting](https://html5andcss3.org/tutorials/html/html-formatting/): HTML Tutorial: HTML provides tags to format text on your web page — making it bold, italic, highlighted, or styled semantically for emphasis. Formatting...
- [HTML Comments](https://html5andcss3.org/tutorials/html/html-comments/): HTML Tutorial: Comments in HTML are notes or explanations added to your code for yourself or other developers. They do not appear on the webpage, but are...
- [HTML Styles](https://html5andcss3.org/tutorials/html/html-styles/): HTML Tutorial: HTML allows you to style your web page content to make it visually appealing. Styles define colors, fonts, spacing, and layout of elements....
- [HTML Text Formatting](https://html5andcss3.org/tutorials/html/html-text-formatting/): HTML Tutorial: HTML Text Formatting allows you to enhance and style text to emphasize meaning, highlight important parts, and improve readability. It...
- [HTML Quotations & Citations](https://html5andcss3.org/tutorials/html/html-quotations-citations/): HTML Tutorial: HTML provides several tags to display quoted text, citations, and references properly. These tags give meaning and context to text quotes,...
- [HTML Links](https://html5andcss3.org/tutorials/html/html-links/): HTML Tutorial: HTML Links allow you to connect one page to another or link to files, images, or external websites. Links are created using the (anchor) tag,...
- [HTML Email Links](https://html5andcss3.org/tutorials/html/html-email-links/): HTML Tutorial: HTML Email Links allow users to click and open their default email application to send a message directly. This is done using the mailto:...
- [HTML Lists](https://html5andcss3.org/tutorials/html/html-lists/): HTML Tutorial: HTML Lists allow you to organize content in a structured way. They are used for menus, steps, bullet points, or any grouped information. HTML...
- [HTML Tables](https://html5andcss3.org/tutorials/html/html-tables/): HTML Tutorial: HTML Tables allow you to display data in a structured, tabular format with rows and columns. Tables are commonly used for schedules, pricing...
- [Table Styling & Borders](https://html5andcss3.org/tutorials/html/table-styling-borders/): HTML Tutorial: HTML tables look plain by default — but with a few CSS properties, you can turn them into clean, professional, and visually appealing data...
- [HTML Images](https://html5andcss3.org/tutorials/html/html-images/): HTML Tutorial: Images make a webpage more engaging and visually appealing. HTML allows you to display images using the tag, which is an empty tag (it...
- [HTML Picture Element](https://html5andcss3.org/tutorials/html/html-picture-element/): HTML Tutorial: The element in HTML is used to display responsive images that automatically adjust to different devices and screen sizes. It allows you to...
- [HTML Audio](https://html5andcss3.org/tutorials/html/html-audio/): HTML Tutorial: HTML allows you to add audio content directly to web pages using the element. You can embed music, podcasts, sound effects, or any audio file...
- [HTML Video](https://html5andcss3.org/tutorials/html/html-video/): HTML Tutorial: The HTML element allows you to embed videos directly on web pages without relying on external plugins. You can display movies, tutorials,...
- [HTML Embed & Object](https://html5andcss3.org/tutorials/html/html-embed-object/): HTML Tutorial: HTML provides the and elements to include external content in web pages, such as PDFs, multimedia files, or interactive applications. These...
- [HTML Forms Overview](https://html5andcss3.org/tutorials/html/html-forms-overview/): HTML Tutorial: HTML forms are essential for collecting user input on a website. They allow users to enter information like names, email addresses,...
- [HTML Form Elements](https://html5andcss3.org/tutorials/html/html-form-elements/): HTML Tutorial: HTML form elements are the building blocks that make up a form. These elements allow users to interact with a webpage — typing text,...
- [HTML Input Types](https://html5andcss3.org/tutorials/html/html-input-types/): HTML Tutorial: The element is one of the most versatile and commonly used elements in HTML forms. It can represent different types of input fields depending...
- [HTML Input Attributes](https://html5andcss3.org/tutorials/html/html-input-attributes/): HTML Tutorial: HTML elements support a wide range of attributes that define their behavior, appearance, and interaction with users. These attributes help...
- [HTML Form Attributes](https://html5andcss3.org/tutorials/html/html-form-attributes/): HTML Tutorial: HTML elements contain several attributes that define how form data is collected, processed, and submitted. These attributes control important...
- [HTML Form Validation](https://html5andcss3.org/tutorials/html/html-form-validation/): HTML Tutorial: Form validation ensures that the data entered by a user meets the expected format and requirements before being submitted to the server. It...
- [HTML Block vs Inline Elements](https://html5andcss3.org/tutorials/html/html-block-vs-inline-elements/): HTML Tutorial: In HTML, every element is defined as either a block-level element or an inline element. Understanding the difference between them is...
- [HTML Div & Span](https://html5andcss3.org/tutorials/html/html-div-span/): HTML Tutorial: The and elements are two of the most commonly used tags in HTML. They do not add any visual change by themselves but are extremely useful for...
- [HTML Semantic Layout Tags](https://html5andcss3.org/tutorials/html/html-semantic-layout-tags/): HTML Tutorial: In modern web design, creating a clear and meaningful page structure is essential. Semantic layout tags in HTML help you define different...
- [HTML Iframes](https://html5andcss3.org/tutorials/html/html-iframes/): HTML Tutorial: An iframe (short for inline frame) is an HTML element that allows you to embed another webpage or document inside the current webpage. It...
- [HTML Entities & Symbols](https://html5andcss3.org/tutorials/html/html-entities-symbols/): HTML Tutorial: In HTML, certain characters like , &, or " have special meanings and cannot be written directly inside the document — doing so can confuse...
- [HTML Emojis](https://html5andcss3.org/tutorials/html/html-emojis/): HTML Tutorial: Emojis add emotion, personality, and visual appeal to web pages. They are part of the Unicode character set, which means you can use them...
- [HTML Head Element Tags](https://html5andcss3.org/tutorials/html/html-head-element-tags/): HTML Tutorial: The element in HTML contains metadata — information about the web page that is not visible directly on the browser screen but is essential...
- [HTML Meta Tags for SEO](https://html5andcss3.org/tutorials/html/html-meta-tags-for-seo/): HTML Tutorial: Meta tags are snippets of text placed inside the section of an HTML document. They provide metadata about your web page to search engines,...
- [HTML Responsive Design](https://html5andcss3.org/tutorials/html/html-responsive-design/): HTML Tutorial: Responsive web design is a crucial concept in modern web development. It ensures that a website looks and works well on all devices — from...
- [HTML5 New Tags](https://html5andcss3.org/tutorials/html/html5-new-tags/): HTML Tutorial: HTML5 introduced several new tags to improve semantic meaning, multimedia handling, and web structure. These tags make the code more readable...
- [Deprecated Tags](https://html5andcss3.org/tutorials/html/deprecated-tags/): HTML Tutorial: As HTML evolved, many tags that were once common became deprecated — meaning they are no longer recommended for use in modern web...
- [HTML Global Attributes](https://html5andcss3.org/tutorials/html/html-global-attributes/): HTML Tutorial: Global attributes are special attributes that can be used with any HTML element — regardless of the tag type. They help define common...
- [Event Attributes](https://html5andcss3.org/tutorials/html/event-attributes/): HTML Tutorial: HTML event attributes allow you to add interactivity to your webpage. They define how elements respond when certain events occur — such as...
- [Complete HTML Tag List](https://html5andcss3.org/tutorials/html/complete-html-tag-list/): HTML Tutorial: HTML tags are the building blocks of every webpage. They define the structure, meaning, and presentation of web content — from headings and...
- [Complete HTML5 Elements](https://html5andcss3.org/tutorials/html/complete-html5-elements/): HTML Tutorial: Browse a categorized list of HTML5 and modern HTML elements, with every tag linked to its complete tutorial lesson and examples.
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-doctype-tag/): HTML Tutorial: The declaration defines the document type and version of HTML that the page is written in. It helps browsers render the page correctly...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-html-tag/): HTML Tutorial: The tag represents the root element of an HTML document. All other HTML elements — such as , , , , etc. — must be nested inside...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-head-tag/): HTML Tutorial: The tag contains metadata and information about the document that is not directly displayed on the web page. It usually includes the page...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-title-tag/): HTML Tutorial: The tag defines the title of an HTML document. It appears in the browser tab, search engine results, and bookmarks, helping users and search...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-body-tag/): HTML Tutorial: The tag defines the main content area of an HTML document. It contains all the elements that are visible to users on a web page — such as...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-base-tag/): HTML Tutorial: The tag specifies the base URL and/or target for all relative URLs in a document. It defines a reference point so that links and resources...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-link-tag/): HTML Tutorial: The tag defines the relationship between the current HTML document and an external resource. It is most commonly used to link external CSS...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-meta-tag/): HTML Tutorial: The tag provides metadata about the HTML document. Metadata is information that does not display directly on the page, but is used by...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-style-tag/): HTML Tutorial: The tag is used to embed CSS styles directly into an HTML document. It allows you to define the look and formatting of elements on the page...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-script-tag/): HTML Tutorial: The tag is used to embed or reference JavaScript code in an HTML document. It allows you to create interactive features, handle events,...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-h1-to-h6-tag/): HTML Tutorial: HTML provides six levels of headings, through , to define content hierarchy and structure. Syntax Heading 1 Heading 2 Heading...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-hgroup-tag/): HTML Tutorial: Learn how to use the HTML tag to group one heading with related subheadings, alternative titles, or taglines, with syntax and examples.
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-p-tag/): HTML Tutorial: The tag defines a paragraph of text in HTML. It is a block-level element that automatically adds some spacing above and below the text,...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-br-tag/): HTML Tutorial: The tag inserts a line break in text, moving content to a new line. It is an empty (self-closing) tag and is useful for breaking lines...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-wbr-tag/): HTML Tutorial: Learn how to use the HTML tag to add optional line-break opportunities, with syntax, examples, browser support, and best practices.
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-hr-tag/): HTML Tutorial: The tag in HTML defines a thematic break between paragraph-level elements. It is typically displayed as a horizontal line and is used to...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-pre-tag/): HTML Tutorial: The tag in HTML defines preformatted text — meaning the text inside it is displayed exactly as written in the HTML file, including spaces,...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-b-tag/): HTML Tutorial: The tag in HTML is used to bolden text without adding extra importance or emphasis. It visually highlights content by making it bold, often...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-strong-tag/): HTML Tutorial: The tag is used to define important or emphasized text that carries strong semantic meaning. Browsers typically render it in bold, but unlike...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-i-tag/): HTML Tutorial: The tag in HTML is used to display text in italic style. Unlike , which emphasizes text semantically, is generally used for stylistic purposes...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-em-tag/): HTML Tutorial: The tag in HTML is used to indicate emphasized text. Browsers typically render text in italic style, but unlike , it carries semantic...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-mark-tag/): HTML Tutorial: The tag in HTML is used to highlight text, typically to indicate relevance or search results. Browsers usually render it with a yellow...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-small-tag/): HTML Tutorial: The tag in HTML is used to reduce the font size of text, usually for fine print, disclaimers, legal notes, or side comments. It is an inline...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-del-tag/): HTML Tutorial: The tag in HTML represents deleted or removed text. Browsers typically display it with a strikethrough, indicating that the content is no...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-ins-tag/): HTML Tutorial: The tag in HTML represents inserted or added text. Browsers typically display it with an underline to indicate new content. It is often used...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-sub-tag/): HTML Tutorial: The tag in HTML is used to display subscript text, which appears smaller and slightly below the baseline of normal text. It is commonly used...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-sup-tag/): HTML Tutorial: The tag in HTML is used to display superscript text, which appears smaller and slightly above the baseline of normal text. It is commonly...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-u-tag/): HTML Tutorial: The tag in HTML is used to underline text. Originally, was purely stylistic, but in modern HTML5, it can also indicate non-emphatic text that...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-blockquote-tag/): HTML Tutorial: The tag is used to define a long quotation from another source. Browsers typically display it as a block element with indentation. It is ideal...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-q-tag/): HTML Tutorial: The tag is used to define a short inline quotation. Browsers usually display the quoted text with quotation marks automatically. It is an...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-cite-tag/): HTML Tutorial: The tag is used to define the title of a creative work, such as a book, painting, movie, website, or research paper. Browsers usually display...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-abbr-tag/): HTML Tutorial: The tag in HTML defines an abbreviation or acronym, such as “HTML,” “CSS,” or “NASA.” When a user hovers over the abbreviation, the browser...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-address-tag/): HTML Tutorial: The tag in HTML is used to define contact information for the author or owner of a document or article. It typically contains details such as...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-bdo-tag/): HTML Tutorial: The tag stands for Bi-Directional Override and is used to override the current text direction of its content. It’s mainly helpful for...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-bdi-tag/): HTML Tutorial: The tag stands for Bi-Directional Isolation and is used to isolate a part of text that might have a different direction from the surrounding...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-a-tag/): HTML Tutorial: The tag, also known as the anchor tag, is used to create hyperlinks in HTML. It allows users to navigate between web pages, jump to specific...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-nav-tag/): HTML Tutorial: The tag defines a section of a webpage that contains navigation links. It helps users move around a website and assists search engines in...
- [HTML Tags](https://html5andcss3.org/tutorials/html/html-ul-tags/): HTML Tutorial: The tag in HTML defines an unordered (bulleted) list, while the tag defines individual list items within that list. Unordered lists are...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-menu-tag/): HTML Tutorial: Learn how to use the HTML tag to create a semantic toolbar of commands, with syntax, attributes, examples, browser support, and best practices.
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-ol-tag/): HTML Tutorial: The tag in HTML defines an ordered (numbered) list, and the tag defines individual list items within that list. Ordered lists are used when...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-dl-tag/): HTML Tutorial: The tag in HTML defines a description list (also known as a definition list). Each description list contains one or more pairs of terms ( )...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-img-tag/): HTML Tutorial: The tag in HTML is used to embed images into a webpage. It is an empty tag (no closing tag) and requires attributes like src (source URL of...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-figure-tag/): HTML Tutorial: The tag in HTML is used to group self-contained media content like images, illustrations, diagrams, code snippets, or videos — usually...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-figcaption-tag/): HTML Tutorial: The tag defines a caption or description for a element. It provides context to the media (such as an image, chart, or video) grouped...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-audio-tag/): HTML Tutorial: The tag is used to embed sound content in an HTML document, such as music, podcasts, or sound effects. It supports multiple audio formats and...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-video-tag/): HTML Tutorial: The tag is used to embed video files directly into a webpage. It supports multiple formats such as MP4, WebM, and Ogg, and provides built-in...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-source-tag/): HTML Tutorial: The tag is used to define multiple media resources for the and elements. It allows the browser to choose the best supported format...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-track-tag/): HTML Tutorial: The tag is used to add text tracks (like subtitles, captions, descriptions, or chapters) to and elements. It improves accessibility...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-embed-tag/): HTML Tutorial: The tag in HTML is used to embed external content such as videos, audio, PDFs, or interactive media (like SVGs or Flash) directly into a...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-object-tag/): HTML Tutorial: Learn how to use the HTML element for supported external resources with MIME types, dimensions, and accessible fallback content.
- [HTML Tag (Obsolete)](https://html5andcss3.org/tutorials/html/html-param-tag/): HTML Tutorial: Learn why the HTML element is obsolete, how it was used with , and which modern HTML alternatives should be used instead.
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-picture-tag/): HTML Tutorial: The tag in HTML is used to provide multiple image sources for responsive designs. It allows the browser to choose the most suitable image...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-canvas-tag/): HTML Tutorial: The tag in HTML is used to draw graphics dynamically via JavaScript, including shapes, charts, animations, and games. It is a container for...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-map-tag/): HTML Tutorial: The tag in HTML is used to define an image map, which is a clickable region on an image that links to different destinations. Each clickable...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-area-tag/): HTML Tutorial: The tag defines clickable areas within an image map created by the element. Each represents a region of the image that acts as a...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-table-tag/): HTML Tutorial: The tag in HTML defines a table — a structured arrangement of data in rows and columns. It serves as the container for all related elements...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-caption-tag/): HTML Tutorial: The tag defines a title or description for a table. It helps users understand the purpose or content of the table and is usually displayed...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-thead-tag/): HTML Tutorial: The tag in HTML defines the header section of a table. It groups all header rows ( ) that typically contain column headings defined by tags....
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-tbody-tag/): HTML Tutorial: The tag in HTML is used to group the main content rows (body) of a table. It separates the table’s data section from the header ( ) and footer...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-tfoot-tag/): HTML Tutorial: The tag in HTML defines the footer section of a table. It is used to group rows that summarize or provide totals, notes, or other information...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-tr-tag/): HTML Tutorial: The tag in HTML defines a table row. It is used inside the element to group one or more table cells ( or ) in a single horizontal row....
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-th-tag/): HTML Tutorial: The tag in HTML defines a header cell in a table. Header cells are typically displayed in bold text and centered by default. They help...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-td-tag/): HTML Tutorial: The tag in HTML defines a standard data cell within a table. Each element represents a single piece of data in a table row ( ). It is one of...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-col-tag/): HTML Tutorial: The tag in HTML defines column properties for each column within a element. It allows you to apply styling, width, or alignment to one or...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-colgroup-tag/): HTML Tutorial: The tag in HTML is used to group one or more columns in a table for formatting purposes. It allows you to apply common styles or attributes...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-form-tag/): HTML Tutorial: The tag is used to create an HTML form for collecting user input. It acts as a container for various input elements like text fields,...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-input-tag/): HTML Tutorial: The tag is used to create interactive form controls for user input. It can represent a text field, checkbox, radio button, file selector,...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-textarea-tag/): HTML Tutorial: The tag is used to create a multi-line text input field in a form. Unlike the field, which is single-line, allows...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-button-tag/): HTML Tutorial: The tag is used to create a clickable button in an HTML form or web page. It can contain text, images, or HTML content, unlike <input...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-select-tag/): HTML Tutorial: The tag is used to create a drop-down list in a form. It allows users to choose one or multiple options from a predefined list. Each option is...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-selectedcontent-tag/): HTML Tutorial: Learn how the new HTML tag works in customizable selects, including syntax, examples, limited browser support, fallbacks, and best practices.
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-option-tag/): HTML Tutorial: The tag is used inside a element to define a single option in a drop-down list. Each represents a selectable value that the user...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-optgroup-tag/): HTML Tutorial: The tag is used to group related elements inside a drop-down. It provides better organization and readability for long lists of...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-label-tag/): HTML Tutorial: The tag is used to define a label for an HTML form control like , , or . Clicking the label automatically focuses the...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-fieldset-tag/): HTML Tutorial: The tag is used to group related elements in a form. It helps organize form controls visually and semantically, often improving usability and...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-legend-tag/): HTML Tutorial: The tag is used to provide a caption or title for a in a form. It helps users understand the purpose of the grouped fields and improves...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-datalist-tag/): HTML Tutorial: The tag is used to provide a list of predefined options for an element. It allows users to type a value or select from a list, offering a...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-output-tag/): HTML Tutorial: The tag is used to display the result of a calculation or user action in a form. It is commonly used with JavaScript to show dynamic results...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-meter-tag/): HTML Tutorial: The tag is used to represent a scalar measurement within a known range, such as disk usage, battery level, or progress percentage. It is...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-progress-tag/): HTML Tutorial: The tag is used to display the progress of a task such as file uploads, downloads, or other operations. Unlike , represents...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-header-tag/): HTML Tutorial: The tag represents a container for introductory content or navigational links. It usually contains headings, logos, and main navigation...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-footer-tag/): HTML Tutorial: The tag represents a footer section for its nearest sectioning content (like , , ). It typically contains copyright info,...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-article-tag/): HTML Tutorial: The tag represents self-contained content that can be independently distributed or reused, such as a blog post, news article, or forum post....
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-section-tag/): HTML Tutorial: The tag defines a thematic grouping of content on a webpage. It is used to organize content into sections with a common heading or purpose,...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-aside-tag/): HTML Tutorial: The tag defines content that is related to the main content but separate from it, like sidebars, pull quotes, or additional information. It...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-main-tag/): HTML Tutorial: The tag represents the dominant content of the of a webpage. It should contain content unique to the page, excluding repeated elements like...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-search-tag/): HTML Tutorial: Learn how to use the HTML tag for accessible search and filtering interfaces, with syntax, examples, browser support, and best practices.
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-details-tag/): HTML Tutorial: The tag is used to create a collapsible content block that the user can open or close. It is often used for FAQs, additional information, or...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-summary-tag/): HTML Tutorial: The tag defines a visible heading for the element. It acts as a toggle button that the user can click to expand or collapse the content...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-dialog-tag/): HTML Tutorial: The tag represents a dialog box or modal window that can contain interactive content such as text, forms, or buttons. It can be opened or...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-time-tag/): HTML Tutorial: The tag defines a specific time or date, or both. It helps browsers, search engines, and assistive technologies understand the time-related...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-noscript-tag/): HTML Tutorial: The tag defines alternative content that is displayed only when JavaScript is disabled in the browser or when the browser does not support...
- [HTML Tags](https://html5andcss3.org/tutorials/html/html-slot-tags/): HTML Tutorial: The tag is a placeholder inside a Web Component that allows developers to pass external content (light DOM) into the shadow DOM. It helps in...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-template-tag/): HTML Tutorial: The tag in HTML is used to define HTML fragments that are not rendered immediately when a page loads. Its content remains inactive until it is...
- [HTML Tag (Obsolete)](https://html5andcss3.org/tutorials/html/html-shadow-tag/): HTML Tutorial: Learn why the old element is obsolete and how to replace Shadow DOM v0 markup with modern Shadow DOM APIs or declarative shadow DOM.
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-center-tag/): HTML Tutorial: The tag was used to horizontally center-align content in HTML. It is deprecated in HTML5 and should be replaced by CSS styling (text-align:...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-font-tag/): HTML Tutorial: The tag was historically used to change the font face, size, and color of text in HTML. It is deprecated in HTML5, and modern web design uses...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-big-tag/): HTML Tutorial: The tag was used to increase the font size of text by one level relative to the surrounding text. It is deprecated in HTML5, and CSS...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-strike-tag/): HTML Tutorial: The tag was historically used to display text with a strikethrough (line through the text). It is deprecated in HTML5. The modern standard...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-tt-tag/): HTML Tutorial: The tag in HTML stands for “teletype text.” It was used to display text in a monospaced (fixed-width) font, resembling the output of old...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-acronym-tag/): HTML Tutorial: The tag in HTML was used to define an acronym — a word formed from the initial letters of other words, such as NASA or HTML. When a user...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-applet-tag/): HTML Tutorial: The tag in HTML was used to embed Java applets (small Java programs) into a web page. Applets could display interactive graphics, animations,...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-frame-tag/): HTML Tutorial: The tag in HTML was used to define a specific region within a that could display a separate HTML document. Frames allowed web developers...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-frameset-tag/): HTML Tutorial: The tag in HTML was used to define a set of frames within the browser window. It allowed you to divide the window into multiple sections...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-noframes-tag/): HTML Tutorial: The tag in HTML was used to provide alternative content for browsers that do not support frames. When a webpage used the element to...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-marquee-tag/): HTML Tutorial: The tag in HTML was used to create scrolling text or images that move horizontally or vertically across a webpage. It was often used to...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-blink-tag/): HTML Tutorial: The tag in HTML was used to make enclosed text blink or flash on and off continuously on the screen. It was introduced in Netscape Navigator...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-s-tag/): HTML Tutorial: The tag in HTML is used to define text that is no longer correct, accurate, or relevant but should not be deleted. It visually renders text...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-var-tag/): HTML Tutorial: The tag in HTML is used to define a variable in a mathematical expression or in a programming context. The content inside the element is...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-kbd-tag/): HTML Tutorial: The tag represents keyboard input entered by the user. Browsers typically display text in a monospace (typewriter-style) font to differentiate...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-samp-tag/): HTML Tutorial: The tag is used to represent sample output from a computer program, system, or device. Browsers typically display text in a monospace font,...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-code-tag/): HTML Tutorial: The tag is used to display a fragment of computer code in a monospace (fixed-width) font. It is typically used for inline code, not for large...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-dfn-tag/): HTML Tutorial: The tag identifies the defining instance of a term or concept within a document. It is used the first time a term appears, usually alongside...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-div-tag/): HTML Tutorial: The tag defines a division or section in an HTML document. It is a block-level container used to group content for styling (CSS) or scripting...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-span-tag/): HTML Tutorial: The tag is an inline container used to group text or elements for styling with CSS or to apply JavaScript functionality. Unlike , does...
- [HTML Comment Tag](https://html5andcss3.org/tutorials/html/html-comment-tag/): HTML Tutorial: HTML comments are used to insert notes or explanations in the HTML code that are not displayed in the browser. Comments are helpful for...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-data-tag/): HTML Tutorial: The tag is used to associate machine-readable data with human-readable content. It allows the browser or scripts to understand the value of a...
- [HTML Ruby Annotations: , and](https://html5andcss3.org/tutorials/html/html-ruby-tags/): HTML Tutorial: Learn how HTML ruby annotations work with the , , and elements, including syntax, examples, browser support, and best practices.
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-svg-tag/): HTML Tutorial: The tag is used to embed Scalable Vector Graphics (SVG) directly inside an HTML document. SVG graphics are resolution-independent, meaning...
- [HTML Tag](https://html5andcss3.org/tutorials/html/html-basefont-tag/): HTML Tutorial: The tag was used to define a default font size, color, and font face for all text in an HTML document. Once set, all text on the page...
- [What is CSS](https://html5andcss3.org/tutorials/css/what-is-css/): CSS Tutorial: CSS (Cascading Style Sheets) is a stylesheet language used to control the appearance and layout of web pages. While HTML is used to structure...
- [CSS Syntax](https://html5andcss3.org/tutorials/css/css-syntax/): CSS Tutorial: CSS syntax defines how styles are written and applied to HTML elements. Every CSS rule consists of a selector and a declaration block, which...
- [How to Add CSS](https://html5andcss3.org/tutorials/css/how-to-add-css/): CSS Tutorial: CSS can be added to HTML documents in different ways to style web pages. Choosing the right method depends on the project size and...
- [CSS Comments](https://html5andcss3.org/tutorials/css/css-comments/): CSS Tutorial: CSS comments are used to explain code, add notes, or temporarily disable styles without deleting them. Comments are ignored by the browser,...
- [Cascade & Inheritance](https://html5andcss3.org/tutorials/css/css-cascade-and-inheritance/): CSS Tutorial: Understand how the browser resolves competing declarations and which values pass from parent elements to their children.
- [CSS Specificity](https://html5andcss3.org/tutorials/css/css-specificity/): CSS Tutorial: Read selector weight correctly, avoid specificity battles, and know when source order breaks a tie.
- [CSS Units](https://html5andcss3.org/tutorials/css/css-values-and-units/): CSS Tutorial: Choose lengths, percentages, angles, times, and resolution units according to what the value should respond to.
- [Box Sizing](https://html5andcss3.org/tutorials/css/css-box-sizing/): CSS Tutorial: Control how padding and borders participate in declared sizes and prevent accidental overflow.
- [CSS Variables](https://html5andcss3.org/tutorials/css/css-custom-properties/): CSS Tutorial: Define reusable values that participate in the cascade and can change across components, themes, and media conditions.
- [CSS Math Functions](https://html5andcss3.org/tutorials/css/css-math-functions/): CSS Tutorial: Build fluid dimensions and dependable constraints by combining calc(), min(), max(), and clamp() with relative CSS units.
- [CSS Element Selector](https://html5andcss3.org/tutorials/css/css-element-selector/): CSS Tutorial: The CSS Element Selector is used to select and style HTML elements based on their tag name. It is the most basic type of selector in CSS and...
- [CSS Class Selector](https://html5andcss3.org/tutorials/css/css-class-selector/): CSS Tutorial: The CSS Class Selector is used to style specific HTML elements that have a class attribute. Unlike the element selector, which targets all...
- [CSS ID Selector](https://html5andcss3.org/tutorials/css/css-id-selector/): CSS Tutorial: The CSS ID Selector is used to style a specific HTML element with a unique ID. Unlike class selectors, an ID is meant to be used only once per...
- [CSS Universal Selector](https://html5andcss3.org/tutorials/css/css-universal-selector/): CSS Tutorial: The CSS Universal Selector is used to select all elements on a webpage. It is represented by an asterisk (*) and applies styles to every HTML...
- [CSS Group Selector](https://html5andcss3.org/tutorials/css/css-group-selector/): CSS Tutorial: The CSS Group Selector is used to apply the same styles to multiple elements at once. Instead of writing separate CSS rules for each element,...
- [CSS Combinators](https://html5andcss3.org/tutorials/css/css-combinators/): CSS Tutorial: CSS Combinators are used to define relationships between selectors. They help target elements more precisely using descendant, child, adjacent...
- [CSS Attribute Selectors](https://html5andcss3.org/tutorials/css/css-attribute-selectors/): CSS Tutorial: CSS Attribute Selectors are used to select HTML elements based on their attributes or attribute values. They help style forms, links, and...
- [CSS Pseudo Classes](https://html5andcss3.org/tutorials/css/css-pseudo-classes/): CSS Tutorial: CSS Pseudo Classes are used to define a special state of an HTML element. They help style user interaction, element position, form states, and...
- [CSS Pseudo Elements](https://html5andcss3.org/tutorials/css/css-pseudo-elements/): CSS Tutorial: CSS Pseudo Elements are used to style specific parts of an HTML element. They help enhance typography, insert decorative content, and style...
- [CSS Colors](https://html5andcss3.org/tutorials/css/css-colors/): CSS Tutorial: CSS Colors are used to define the color of text, backgrounds, borders, and other elements on a webpage. Colors play a very important role in...
- [CSS HEX Colors](https://html5andcss3.org/tutorials/css/css-hex-colors/): CSS Tutorial: HEX (Hexadecimal) colors are a popular way to define colors in CSS using a 6-digit combination of numbers and letters. A HEX color starts with...
- [CSS RGB Colors](https://html5andcss3.org/tutorials/css/css-rgb-colors/): CSS Tutorial: RGB colors in CSS are used to define colors using the Red, Green, and Blue color model. Each color value ranges from 0 to 255, where: 0 means...
- [Modern Colors](https://html5andcss3.org/tutorials/css/modern-css-colors/): CSS Tutorial: Use alpha colors, perceptual color spaces, color mixing, and relative colors while preserving dependable fallbacks.
- [CSS Background Color](https://html5andcss3.org/tutorials/css/css-background-color/): CSS Tutorial: The CSS Background Color property is used to set the background color of an HTML element. It helps improve the visual appearance of a webpage...
- [CSS Background Image](https://html5andcss3.org/tutorials/css/css-background-image/): CSS Tutorial: The CSS Background Image property is used to set an image as the background of an HTML element. It allows you to enhance the visual design of...
- [Layered Backgrounds](https://html5andcss3.org/tutorials/css/css-multiple-backgrounds/): CSS Tutorial: Layer background images, control their painting area, and use borders that are more than a solid line.
- [CSS Text Color](https://html5andcss3.org/tutorials/css/css-text-color/): CSS Tutorial: The CSS Text Color property is used to change the color of text displayed on a webpage. It helps improve readability, visual design, and...
- [CSS Text Alignment](https://html5andcss3.org/tutorials/css/css-text-alignment/): CSS Tutorial: The CSS Text Alignment property is used to control the horizontal alignment of text inside an element. It helps improve readability and page...
- [CSS Text Decoration](https://html5andcss3.org/tutorials/css/css-text-decoration/): CSS Tutorial: The CSS Text Decoration property is used to add or remove decorative lines from text. It helps style links and emphasize content with...
- [CSS Font Family](https://html5andcss3.org/tutorials/css/css-font-family/): CSS Tutorial: The CSS Font Family property is used to specify the typeface used to display text on a webpage. It helps control typography, readability, and...
- [CSS Font Size](https://html5andcss3.org/tutorials/css/css-font-size/): CSS Tutorial: The CSS Font Size property is used to control the size of text displayed on a webpage. It helps improve readability, accessibility, and visual...
- [Web Fonts & Typography](https://html5andcss3.org/tutorials/css/css-typography-and-web-fonts/): CSS Tutorial: Set readable type, load web fonts responsibly, and understand the properties that shape a line of text.
- [Text Wrapping](https://html5andcss3.org/tutorials/css/css-text-wrapping-and-overflow/): CSS Tutorial: Handle long words, truncation, balanced headings, and multi-line clamping without breaking layouts.
- [CSS Margin](https://html5andcss3.org/tutorials/css/css-margin/): CSS Tutorial: The CSS Margin property is used to create space outside an element’s border. It controls the distance between an element and surrounding...
- [CSS Padding](https://html5andcss3.org/tutorials/css/css-padding/): CSS Tutorial: The CSS Padding property is used to create space inside an element, between the content and its border. It helps improve readability and...
- [CSS Border](https://html5andcss3.org/tutorials/css/css-border/): CSS Tutorial: The CSS Border property is used to define the outline around an HTML element. It helps in visually separating elements and improving layout...
- [CSS Outline](https://html5andcss3.org/tutorials/css/css-outline/): CSS Tutorial: The CSS Outline property is used to draw a line outside an element’s border. It is similar to a border, but with some key differences: It does...
- [CSS Width and Height](https://html5andcss3.org/tutorials/css/css-width-and-height/): CSS Tutorial: The CSS Width and Height properties are used to define the size of an HTML element. Width → controls the horizontal size Height → controls the...
- [Normal Flow](https://html5andcss3.org/tutorials/css/css-normal-flow/): CSS Tutorial: Understand block flow, inline flow, formatting contexts, containing blocks, and why positioned elements use particular reference boxes.
- [CSS Display](https://html5andcss3.org/tutorials/css/css-display/): CSS Tutorial: The CSS Display property determines how an HTML element is displayed on a webpage. It controls layout behavior with values like block, inline,...
- [CSS Position](https://html5andcss3.org/tutorials/css/css-position/): CSS Tutorial: The CSS Position property is used to control how an element is positioned on a webpage. It supports static, relative, absolute, fixed, and...
- [Anchor Positioning](https://html5andcss3.org/tutorials/css/css-anchor-positioning/): CSS Tutorial: Position tooltips, menus, and callouts relative to an anchor while providing fallback placements for constrained space.
- [CSS Float](https://html5andcss3.org/tutorials/css/css-float/): CSS Tutorial: The CSS Float property is used to position an element to the left or right side of its container, allowing surrounding content to wrap around...
- [CSS Overflow](https://html5andcss3.org/tutorials/css/css-overflow/): CSS Tutorial: The CSS Overflow property controls what happens when content is too large to fit inside an element. It helps manage scrollable areas, fixed...
- [CSS Z-index](https://html5andcss3.org/tutorials/css/css-z-index/): CSS Tutorial: The CSS Z-index property controls the stacking order of positioned elements on a webpage. It helps manage layering for menus, modals,...
- [Intrinsic Sizing](https://html5andcss3.org/tutorials/css/css-intrinsic-sizing/): CSS Tutorial: Use min-content, max-content, fit-content(), and flexible track sizing to let content participate in layout decisions.
- [Aspect Ratio & Object Fit](https://html5andcss3.org/tutorials/css/css-aspect-ratio-object-fit/): CSS Tutorial: Reserve stable media space with aspect-ratio and control how images and video fit and align inside their boxes.
- [Multi-column Layout](https://html5andcss3.org/tutorials/css/css-multi-column-layout/): CSS Tutorial: Flow long-form content through balanced columns and control how elements break across them.
- [Flex Container](https://html5andcss3.org/tutorials/css/flex-container/): CSS Tutorial: A Flex Container is an HTML element that uses CSS Flexbox Layout to arrange and align its child elements. It makes alignment, spacing, and...
- [Flex Direction](https://html5andcss3.org/tutorials/css/flex-direction/): CSS Tutorial: The Flex Direction property is used to define the direction in which flex items are displayed inside a flex container. It helps create...
- [Justify Content](https://html5andcss3.org/tutorials/css/justify-content/): CSS Tutorial: The justify-content property is used to control the horizontal alignment and spacing of flex items along the main axis of a flex container. It...
- [Align Items](https://html5andcss3.org/tutorials/css/align-items/): CSS Tutorial: The align-items property is used to control the alignment of flex items along the cross axis of a flex container. It helps center, stretch, or...
- [Flex Wrap](https://html5andcss3.org/tutorials/css/flex-wrap/): CSS Tutorial: The flex-wrap property controls whether flex items should stay on a single line or wrap onto multiple lines. It helps create responsive...
- [Flex Item Sizing](https://html5andcss3.org/tutorials/css/css-flex-items/): CSS Tutorial: Control how individual flex items grow, shrink, reorder, align, and resolve their size against the available space.
- [CSS Grid Container](https://html5andcss3.org/tutorials/css/css-grid-container/): CSS Tutorial: A CSS Grid Container is an HTML element that uses the CSS Grid Layout system to arrange its child elements in rows and columns. It helps...
- [CSS Grid Columns](https://html5andcss3.org/tutorials/css/css-grid-columns/): CSS Tutorial: The CSS Grid Columns property is used to define the number and size of columns in a grid layout. It helps create fixed, flexible, and...
- [CSS Grid Rows](https://html5andcss3.org/tutorials/css/css-grid-rows/): CSS Tutorial: The CSS Grid Rows property is used to define the height and structure of rows in a CSS Grid layout. It helps create fixed, flexible, and...
- [CSS Grid Gap](https://html5andcss3.org/tutorials/css/css-grid-gap/): CSS Tutorial: The CSS Grid Gap property is used to create space between grid rows and columns. It helps build cleaner and more organized grid layouts with...
- [CSS Grid Layout Example](https://html5andcss3.org/tutorials/css/css-grid-layout-example/): CSS Tutorial: A CSS Grid Layout combines rows, columns, and spacing to create structured and responsive web page layouts. It demonstrates how grid...
- [Grid Placement](https://html5andcss3.org/tutorials/css/css-grid-item-placement/): CSS Tutorial: Place items by numbered lines, named lines, and spans while keeping the source order meaningful.
- [Grid Areas](https://html5andcss3.org/tutorials/css/css-grid-areas-auto-placement/): CSS Tutorial: Describe page regions with named areas and understand how the auto-placement algorithm fills a grid.
- [CSS Subgrid](https://html5andcss3.org/tutorials/css/css-subgrid/): CSS Tutorial: Align nested content to tracks defined by an ancestor grid without copying track sizes.
- [CSS Lists](https://html5andcss3.org/tutorials/css/css-lists/): CSS Tutorial: The CSS Lists properties are used to customize the appearance of ordered and unordered lists. They help style markers, navigation menus, and...
- [CSS Tables](https://html5andcss3.org/tutorials/css/css-tables/): CSS Tutorial: The CSS Tables properties are used to control the appearance and layout of HTML tables. They help improve readability, spacing, borders, and...
- [CSS Form Styling](https://html5andcss3.org/tutorials/css/css-form-styling/): CSS Tutorial: The CSS Form Styling properties are used to improve the appearance of HTML forms and their elements. They help create modern, user-friendly...
- [CSS Input Fields](https://html5andcss3.org/tutorials/css/css-input-fields/): CSS Tutorial: CSS Input Fields are styled using CSS to improve the appearance and usability of form input elements. They help create cleaner, more...
- [CSS Shadows](https://html5andcss3.org/tutorials/css/css-shadows/): CSS Tutorial: The CSS Shadows properties are used to add shadow effects to elements and text on a webpage. They help create depth, emphasis, and modern UI...
- [CSS Gradients](https://html5andcss3.org/tutorials/css/css-gradients/): CSS Tutorial: CSS Gradients are used to create smooth transitions between two or more colors without using images. They help build modern, lightweight, and...
- [CSS Filters](https://html5andcss3.org/tutorials/css/css-filters/): CSS Tutorial: The CSS Filter property is used to apply visual effects to elements, especially images. It helps create blur, grayscale, brightness, contrast,...
- [CSS Opacity](https://html5andcss3.org/tutorials/css/css-opacity/): CSS Tutorial: The CSS Opacity property is used to control the transparency level of an element. It helps create overlays, hover effects, fade transitions,...
- [Clipping & Masking](https://html5andcss3.org/tutorials/css/css-clipping-masking-shapes/): CSS Tutorial: Control visible regions, alpha masks, and the contour around which inline content flows.
- [Blending & Backdrop](https://html5andcss3.org/tutorials/css/css-blending-backdrop-filters/): CSS Tutorial: Blend overlapping content, isolate compositing groups, and filter the pixels behind translucent surfaces.
- [Scroll Snap](https://html5andcss3.org/tutorials/css/css-scroll-behavior-snap/): CSS Tutorial: Create deliberate scroll destinations, offsets, and snapping without trapping users.
- [CSS Transform](https://html5andcss3.org/tutorials/css/css-transform/): CSS Tutorial: The CSS Transform property is used to change the position, size, rotation, or shape of an element without affecting the normal document...
- [CSS 2D Transform](https://html5andcss3.org/tutorials/css/css-2d-transform/): CSS Tutorial: CSS 2D Transform allows you to modify an element's appearance on a two-dimensional plane using the X and Y axes. It helps create hover...
- [CSS 3D Transform](https://html5andcss3.org/tutorials/css/css-3d-transform/): CSS Tutorial: CSS 3D Transform allows you to transform elements in a three-dimensional space using the X, Y, and Z axes. It helps create depth, card flips,...
- [CSS Transitions](https://html5andcss3.org/tutorials/css/css-transitions/): CSS Tutorial: The CSS Transition property allows you to create smooth animations between property changes. It helps build polished hover effects,...
- [Entry & Exit Transitions](https://html5andcss3.org/tutorials/css/css-entry-exit-transitions/): CSS Tutorial: Animate elements as they enter, leave, or move through the top layer with starting styles and discrete property transitions.
- [CSS Animations](https://html5andcss3.org/tutorials/css/css-animations/): CSS Tutorial: CSS Animations allow elements to change styles automatically over time without requiring JavaScript. They help create loaders, bouncing...
- [Scroll Animations](https://html5andcss3.org/tutorials/css/css-scroll-driven-animations/): CSS Tutorial: Drive animation progress from a scroll container or an element's passage through the scrollport instead of elapsed time.
- [View Transitions](https://html5andcss3.org/tutorials/css/css-view-transitions/): CSS Tutorial: Create coordinated transitions between page states and documents with named snapshots and view-transition pseudo-elements.
- [Motion Paths](https://html5andcss3.org/tutorials/css/css-motion-path/): CSS Tutorial: Position and animate an element along a path while controlling its rotation and distance.
- [CSS Media Queries](https://html5andcss3.org/tutorials/css/css-media-queries/): CSS Tutorial: CSS Media Queries are used to apply different styles based on device type, screen size, resolution, or orientation. They are essential for...
- [Responsive Layout](https://html5andcss3.org/tutorials/css/responsive-layout/): CSS Tutorial: A Responsive Layout is a web page layout that automatically adjusts to different screen sizes and devices. It helps create readable,...
- [Mobile First Design](https://html5andcss3.org/tutorials/css/mobile-first-design/): CSS Tutorial: Mobile First Design is a web development approach where a website is designed and developed for mobile devices first, then progressively...
- [Container Queries](https://html5andcss3.org/tutorials/css/css-container-queries/): CSS Tutorial: Adapt a component to the space provided by its container instead of the size of the viewport.
- [Preference Media Queries](https://html5andcss3.org/tutorials/css/css-user-preference-media-queries/): CSS Tutorial: Respect motion, contrast, color-scheme, transparency, and input preferences exposed by the user agent.
- [Feature Queries](https://html5andcss3.org/tutorials/css/css-feature-queries/): CSS Tutorial: Apply progressive enhancements only when the browser understands a required CSS declaration or selector.
- [Cascade Layers](https://html5andcss3.org/tutorials/css/css-cascade-layers/): CSS Tutorial: Organize style origins into an explicit priority order without inflating selector specificity.
- [Nesting & Scope](https://html5andcss3.org/tutorials/css/css-nesting-and-scope/): CSS Tutorial: Keep related selectors together with native nesting and limit selectors to a component subtree with @scope.
- [Logical Properties](https://html5andcss3.org/tutorials/css/css-logical-properties-writing-modes/): CSS Tutorial: Write layouts that adapt to right-to-left text and vertical writing without duplicating physical left and right rules.
- [Generated Content](https://html5andcss3.org/tutorials/css/css-generated-content-counters/): CSS Tutorial: Add presentational markers and automatic numbering with pseudo-elements, content, and counters.
- [Accessible CSS](https://html5andcss3.org/tutorials/css/accessible-css/): CSS Tutorial: Preserve focus, readable contrast, zoom behavior, target size, and semantic reading order while styling interfaces.
- [CSS Theming](https://html5andcss3.org/tutorials/css/css-color-schemes-theming/): CSS Tutorial: Build light and dark themes that work with browser controls, user preferences, and forced colors.
- [Modern Form Styling](https://html5andcss3.org/tutorials/css/css-modern-form-controls/): CSS Tutorial: Style native controls without discarding their states, platform behavior, or accessibility.
- [CSS User Interface](https://html5andcss3.org/tutorials/css/css-user-interface/): CSS Tutorial: Control selection, pointer hit testing, resizing, caret appearance, cursors, and other interaction-facing CSS without hiding usable states.
- [Print Styles](https://html5andcss3.org/tutorials/css/css-print-styles/): CSS Tutorial: Prepare documents for paper and PDF with print media rules, page breaks, and sensible URL treatment.
- [CSS Performance](https://html5andcss3.org/tutorials/css/css-containment-performance/): CSS Tutorial: Use containment and deferred rendering where measurement shows a real rendering cost.
- [CSS Architecture](https://html5andcss3.org/tutorials/css/css-architecture/): CSS Tutorial: Organize tokens, base rules, components, utilities, and exceptions so a stylesheet remains easy to change.
- [Debugging CSS](https://html5andcss3.org/tutorials/css/debugging-css/): CSS Tutorial: Trace computed values, layout constraints, stacking contexts, and overflow with browser developer tools.
- [CSS At-rules](https://html5andcss3.org/tutorials/css/css-at-rules-reference/): CSS Tutorial: A practical map of the at-rules used to import, condition, organize, animate, and describe CSS.
- [CSS Functions](https://html5andcss3.org/tutorials/css/css-functions-reference/): CSS Tutorial: Recognize common CSS functions for values, colors, images, transforms, filters, shapes, counters, and environment data.
- [Responsive CSS Project](https://html5andcss3.org/tutorials/css/responsive-css-page-project/): CSS Tutorial: Combine tokens, fluid sizing, Grid, Flexbox, container queries, theming, and reduced-motion handling in one page.
- [What is JavaScript](https://html5andcss3.org/tutorials/javascript/what-is-javascript/): JavaScript Tutorial: JavaScript is a programming language used to make web pages interactive and dynamic.
- [JavaScript Features](https://html5andcss3.org/tutorials/javascript/javascript-features/): JavaScript Tutorial: JavaScript has many useful features that make it one of the most popular programming languages for web development.
- [JavaScript Syntax](https://html5andcss3.org/tutorials/javascript/javascript-syntax/): JavaScript Tutorial: Learn JavaScript syntax with beginner-friendly examples covering statements, values, variables, operators, expressions, keywords,...
- [How to Add JavaScript](https://html5andcss3.org/tutorials/javascript/how-to-add-javascript/): JavaScript Tutorial: Learn how to add JavaScript to HTML using inline, internal, and external JavaScript with beginner-friendly examples.
- [JavaScript Output](https://html5andcss3.org/tutorials/javascript/javascript-output/): JavaScript Tutorial: Learn JavaScript output methods including innerHTML, document.write(), alert(), and console.log() with beginner-friendly examples.
- [JavaScript Comments](https://html5andcss3.org/tutorials/javascript/javascript-comments/): JavaScript Tutorial: Learn JavaScript comments with examples. Understand single-line comments, multi-line comments, disabling code, common mistakes, and...
- [JavaScript Variables](https://html5andcss3.org/tutorials/javascript/javascript-variables/): JavaScript Tutorial: Learn JavaScript variables with let, const, var, naming rules, assignment, and beginner-friendly examples.
- [JavaScript Data Types](https://html5andcss3.org/tutorials/javascript/javascript-data-types/): JavaScript Tutorial: Learn JavaScript data types including String, Number, Boolean, Undefined, Null, Object, Array, BigInt, Symbol, and typeof with...
- [JavaScript Operators](https://html5andcss3.org/tutorials/javascript/javascript-operators/): JavaScript Tutorial: Learn JavaScript operators including arithmetic, assignment, comparison, logical, string, increment, and decrement operators with...
- [JavaScript Statements](https://html5andcss3.org/tutorials/javascript/javascript-statements/): JavaScript Tutorial: Learn JavaScript statements with examples, semicolons, code blocks, functions, conditions, loops, and beginner-friendly explanations.
- [JavaScript Expressions](https://html5andcss3.org/tutorials/javascript/javascript-expressions/): JavaScript Tutorial: Learn JavaScript expressions with numeric, string, boolean, assignment, function, and template literal examples for beginners.
- [JavaScript Keywords](https://html5andcss3.org/tutorials/javascript/javascript-keywords/): JavaScript Tutorial: Learn JavaScript keywords with beginner-friendly examples covering reserved words for variables, conditions, loops, functions, and more.
- [JavaScript Identifiers](https://html5andcss3.org/tutorials/javascript/javascript-identifiers/): JavaScript Tutorial: Learn JavaScript identifiers with naming rules, valid and invalid examples, camelCase, and beginner-friendly explanations.
- [JavaScript Case Sensitivity](https://html5andcss3.org/tutorials/javascript/javascript-case-sensitivity/): JavaScript Tutorial: Learn JavaScript case sensitivity with examples for variables, functions, object properties, keywords, and camelCase naming.
- [JavaScript Semicolons](https://html5andcss3.org/tutorials/javascript/javascript-semicolons/): JavaScript Tutorial: Learn JavaScript semicolons with beginner-friendly examples covering statements, function calls, code blocks, arrays, objects, and...
- [JavaScript Code Blocks](https://html5andcss3.org/tutorials/javascript/javascript-code-blocks/): JavaScript Tutorial: Learn JavaScript code blocks with beginner-friendly examples covering if statements, functions, loops, block scope, var, and nested blocks.
- [JavaScript if Statement](https://html5andcss3.org/tutorials/javascript/javascript-if-statement/): JavaScript Tutorial: Learn the JavaScript if statement with beginner-friendly examples using numbers, strings, booleans, comparison operators, and logical...
- [JavaScript if else Statement](https://html5andcss3.org/tutorials/javascript/javascript-if-else-statement/): JavaScript Tutorial: Learn the JavaScript if else statement with beginner-friendly examples using numbers, strings, booleans, comparison operators, and...
- [JavaScript else if Statement](https://html5andcss3.org/tutorials/javascript/javascript-else-if-statement/): JavaScript Tutorial: Learn the JavaScript else if statement with beginner-friendly examples for multiple conditions, numbers, strings, and correct condition...
- [JavaScript switch Statement](https://html5andcss3.org/tutorials/javascript/javascript-switch-statement/): JavaScript Tutorial: Learn the JavaScript switch statement with beginner-friendly examples covering case, break, default, numbers, strings, grouped cases,...
- [JavaScript for Loop](https://html5andcss3.org/tutorials/javascript/javascript-for-loop/): JavaScript Tutorial: Learn the JavaScript for loop with beginner-friendly examples covering loop syntax, counting, arrays, strings, calculations,...
- [JavaScript while Loop](https://html5andcss3.org/tutorials/javascript/javascript-while-loop/): JavaScript Tutorial: Learn the JavaScript while loop with beginner-friendly examples covering conditions, counting, arrays, strings, loop updates, and...
- [JavaScript do while Loop](https://html5andcss3.org/tutorials/javascript/javascript-do-while-loop/): JavaScript Tutorial: Learn the JavaScript do while loop with beginner-friendly examples covering syntax, counting, arrays, loop updates, and its difference...
- [JavaScript break Statement](https://html5andcss3.org/tutorials/javascript/javascript-break-statement/): JavaScript Tutorial: Learn the JavaScript break statement with beginner-friendly examples using for, while, do while, arrays, strings, and switch statements.

## Insights and articles

- [The Best Free HTML Tutorial PDF for Beginners (2026 Edition)](https://html5andcss3.org/insights/best-free-html-tutorial-pdf-for-beginners-2026-edition/): Get a free HTML tutorial PDF for beginners with 162 chapters, HTML5 elements, semantic HTML, forms, metadata, code examples, and a complete tag reference.
- [JavaScript Events Explained for Beginners with Simple Examples](https://html5andcss3.org/insights/javascript-events-explained-for-beginners-with-simple-examples/): Learn JavaScript events step by step with beginner-friendly examples for click, input, submit, keyboard events, preventDefault, event.target, bubbling, and...
- [JavaScript DOM Manipulation for Beginners: Make Your Webpage Interactive](https://html5andcss3.org/insights/javascript-dom-manipulation-for-beginners-make-your-webpage-interactive/): Learn JavaScript DOM manipulation step by step with simple examples for selecting elements, changing content, handling clicks, forms, and building...
- [HTML Semantic Tags Explained: Why They Matter for SEO and Accessibility](https://html5andcss3.org/insights/html-semantic-tags-explained-why-they-matter-for-seo-and-accessibility/): A beginner-friendly guide to semantic HTML tags, page structure, SEO benefits, accessibility, and best practices with practical examples.
- [10 HTML and CSS Projects for Beginners to Practice in 2026](https://html5andcss3.org/insights/10-html-and-css-projects-for-beginners-to-practice-in-2026/): Explore 10 beginner-friendly HTML and CSS projects to practice in 2026, including forms, navbars, landing pages, pricing tables, galleries, portfolios, and...
- [CSS Media Queries for Beginners: How to Make a Website Responsive](https://html5andcss3.org/insights/css-media-queries-for-beginners-how-to-make-a-website-responsive/): Learn CSS media queries for beginners with practical responsive design examples, common breakpoints, mobile-first CSS, Flexbox, Grid, images, fonts, and...
- [CSS Flexbox vs CSS Grid: Which One Should Beginners Learn First?](https://html5andcss3.org/insights/css-flexbox-vs-css-grid-which-one-should-beginners-learn-first/): Learn the difference between CSS Flexbox and CSS Grid, when to use each layout system, and which one beginners should learn first.
- [How to Start Learning HTML and CSS: A Beginner's Roadmap](https://html5andcss3.org/insights/how-to-start-learning-html-and-css-a-beginners-roadmap/): Learn how to start learning HTML and CSS with a simple beginner roadmap covering structure, tags, semantic HTML, CSS basics, Flexbox, Grid, responsive...

## Developer tools

- [JSON Formatter](https://html5andcss3.org/tools/json-formatter/): Format, validate, and copy JSON in a responsive two-column interface.
- [CSS Minifier](https://html5andcss3.org/tools/css-minifier/): Compress CSS by removing comments and unnecessary whitespace for faster delivery.
- [HTML Minifier](https://html5andcss3.org/tools/html-minifier/): Minify your HTML to reduce size and improve load speed
- [Base64 Encoder / Decoder](https://html5andcss3.org/tools/base64-encoder-decoder/): Encode plain text to Base64 or decode Base64 into readable text with a quick mode switch.
- [URL Encoder / Decoder](https://html5andcss3.org/tools/url-encoder-decoder/): Encode URLs for safe query-string usage or decode them back into a readable format.
- [UUID Generator](https://html5andcss3.org/tools/uuid-generator/): Generate one or more UUID v4 values for APIs, testing, and database records.
- [Timestamp Converter](https://html5andcss3.org/tools/timestamp-converter/): Convert Unix timestamps or date strings into readable UTC, local, and Unix formats.
- [CSS Gradient Generator](https://html5andcss3.org/tools/css-gradient-generator/): Generate linear or radial gradient CSS using custom colors, direction, and stop positions.
- [Box Shadow Generator](https://html5andcss3.org/tools/box-shadow-generator/): Generate box-shadow CSS from offsets, blur, spread, color, opacity, and inset settings.
- [Color Contrast Checker](https://html5andcss3.org/tools/contrast-checker/): Check contrast ratio between two colors and review WCAG AA and AAA accessibility results.

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- [About Us](https://html5andcss3.org/about-us/): HTML5andCSS3.org brings tutorials and practical tools together in one place, helping learners understand concepts clearly and apply them instantly through...
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