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<!DOCTYPE HTML>
<!--
Tests that setting a fixed top margin in the compositor results
in the margin being applied to an element sticky to the top.
The fixed margin is specified as a test-pref in reftest.list.
The purpose of the fixed margin is to compensate for the transform that the
dynamic toolbar applies to the entire content area. We don't have a way of
simulating that transform in a reftest, so the fixed margin in isolation will
cause the fixed element to be offset from the top of the screen.
-->
<html>
<meta name="viewport" content="width=device-width">
<style>
html {
scrollbar-width: none;
}
#scrolled {
display: flex;
justify-content: space-around;
align-items: flex-start;
height: 2000px;
width: 100%;
}
#sticky {
width: 100%;
height: 200px;
position: sticky;
top: 20px;
background: red;
}
</style>
<body>
<div id="scrolled">
<div id="sticky"></div>
</div>
</body>
</html>
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