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General Information

The information on HTML5ANDCSS3.org is provided for educational purposes only. We publish tutorials, examples and tools covering HTML, CSS, JavaScript, React, data structures and algorithms, and related web technologies.

We work to keep it accurate and current, but we make no guarantee as to completeness, reliability or accuracy.

Use at Your Own Risk

All tutorials, code examples and tools on this site are used at your own risk. We are not responsible for any loss or damage arising from your use of the information, code or tools provided here. Test and review any code carefully before using it in production.

Code That Runs in Your Browser

The Try It editor and the practice workspace execute code inside a sandboxed frame in your own browser. Previews load libraries from a third-party CDN and can load any external resource your code references.

  • Do not paste passwords, API keys, tokens or other secrets into the editor.
  • Code you run is your own responsibility; we do not review it.
  • Anything you turn into a share link can be opened by anyone who has that link.

Certificates

Certificates issued by this site record that you completed a tutorial and its assessment here. They are not an accredited or formally recognised qualification, are not issued by any examining body, and we make no promise that any employer or institution will recognise them.

Paid Plans

Paid practice plans give access to the exercises and challenges described at the time of purchase. We do not guarantee any particular learning outcome, job, or career result from using this site. Billing terms are set out in our Terms of Service, and refunds in our Refund and Cancellation Policy.

External Links

This site links to external websites and third-party resources for convenience and further reading. We do not control them and are not responsible for their content, accuracy, availability or privacy practices.

Professional Disclaimer

Nothing here is professional, legal, financial or technical advice. Any reliance you place on this material is at your own discretion.

Errors and Omissions

Mistakes and outdated information can occur. HTML5ANDCSS3.org may correct, update or remove content at any time without notice.

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