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CSS Font Size — exercises and bug fixes

5 hands-on exercises and 5 find-the-bug challenges for the CSS Font Size lesson. Every one is checked automatically in the browser — write the code, run it, and the tests tell you what still fails.

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Exercises(5)

  1. 1

    Set a pixel size

    easy10 min

    Make #text 24px.

  2. 2

    Size a heading

    easy10 min

    Make #title 32px.

  3. 3

    Use rem

    easy10 min

    With a 16px root, set #text to 1.5rem.

  4. 4

    Use em

    easy10 min

    With #wrap at 20px, set #text to 1.5em.

  5. 5

    Build a type scale

    medium10 min

    32px heading over 16px body text.

Find the bug(5)

  1. 1

    Fix the missing unit

    easy8 min

    A font size needs a unit.

  2. 2

    Fix the shortened property

    easy8 min

    The property is font-size.

  3. 3

    Fix rem confused with em

    easy8 min

    1.5rem against a 16px root should be 24px.

  4. 4

    Fix the wrong root size

    easy8 min

    The root should be 16px so 1.5rem lands on 24px.

  5. 5

    Fix the inverted scale

    easy8 min

    The heading should be larger than the body text.

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