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<!doctype html>
<html lang=en>
<meta charset=utf-8>
<title>CSS-contain test: layout containment on html prevents background propagation</title>
<link rel="author" title="Florian Rivoal" href="https://florian.rivoal.net">
<meta name=flags content="">
<meta name=assert content="layout containment on html prevents background propagation">
<link rel="match" href="reference/contain-body-bg-001-ref.html">
<link rel=help href="https://drafts.csswg.org/css-contain-1/#contain-property">
<style>
html, body, p {
margin: 0;
width: 300px;
height: 200px;
}
p {
background: white;
}
body {
background: red;
}
html {
contain: layout;
}
</style>
<p>Test passes if there is no red.
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