Sticky header

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position:sticky with top:0 keeps the menu reachable while scrolling.

Which position value sticks an element while scrolling?

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What you start with

<style>
  header { }
</style>
<header><h1>AI CSA</h1></header>
<main><p>Content</p></main>

Syntax reference

<style>
  header { position: sticky; top: 0; background:#fff; z-index: 10; }
</style>
<header><h1>AI CSA</h1></header>
<main><p>Content</p></main>

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HTML & CSS 1 automatic check Layouts and responsiveness

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<style>
  header { }
</style>
<header><h1>AI CSA</h1></header>
<main><p>Content</p></main>

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One correct answer:

<style>
  header { position: sticky; top: 0; background:#fff; z-index: 10; }
</style>
<header><h1>AI CSA</h1></header>
<main><p>Content</p></main>

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