Read first
Task 21
Relative units
rem and % scale with the reader’s settings; hard px do not.
Task
Which unit is relative to the root font size?
The editor already contains a starting point. Change it until every check passes — the Next task button unlocks when it does.
What you start with
<style>
h1 { font-size: 32px; }
</style>
<h1>Fees</h1>
Syntax reference
<style>
h1 { font-size: 2rem; }
</style>
<h1>Fees</h1>
Read it, then write it yourself. Copy-paste teaches nothing.
HTML & CSS
1 automatic check Layouts and responsiveness
Code editor
Ctrl + Enter runs
Run your code to see the output and the checks.
Your result
Submit your code to see results
Write your code in the middle column and press Run code.
Next task (pass every check first)
Hint
Ask yourself: Which unit is relative to the root font size?
Still stuck? Open “Syntax reference” in the left column, then type it yourself and change one value.