<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Containment Test: Layout containment fixed positioned descendants</title>
<link rel="author" title="Manuel Rego Casasnovas" href="mailto:[email protected]">
<link rel="help" href="https://drafts.csswg.org/css-contain-1/#containment-layout">
<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
<meta name=assert content="Layout containment makes an element to act as containing block for fixed positioned descendants.">
<style>
#contain-layout {
contain: layout;
width: 100px;
height: 100px;
background: red;
}
#fixed {
position: fixed;
bottom: 0;
right: 0;
background: green;
width: 100px;
height: 100px;
}
</style>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div id="contain-layout">
<div id="fixed"></div>
</div>
Codebase Browser
chromium