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<!DOCTYPE HTML>
<title>CSS Test (Transforms): 3D Rendering Context following DOM Tree (fixed positioning)</title>
<link rel="author" title="L. David Baron" href="https://dbaron.org/">
<link rel="author" title="Google" href="http://www.google.com/">
<link rel="help" href="https://drafts.csswg.org/css-transforms-2/#3d-rendering-contexts">
<meta name="assert" content="Fixed positioned elements participate in 3D Rendering Contexts based on their parent, not their containing block.">
<link rel="match" href="reference/green.html">
<style>
div {
width: 100px;
height: 100px;
}
.cb {
transform-style: preserve-3d;
transform: translateX(0);
background: red;
position: relative;
}
.parent {
}
.abspos {
position: fixed;
top: 0;
left: 0;
/* Since this element is not in the 3D Rendering Context, this translation
does not put it above the <div class="sibling">. */
transform: translateZ(20px);
background: red;
}
.sibling {
position: absolute;
top: 0;
left: 0;
transform: translateZ(10px);
background: green;
}
</style>
<p>Pass if there is NO red below:</p>
<div class="cb">
<div class="parent">
<div class="abspos">
</div>
</div>
<div class="sibling">
</div>
</div>
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