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Test Info:

<!DOCTYPE html>
<title>CSS Test: Absolutely positioned children of flexboxes</title>
<link rel="author" title="Google Inc." href="http://www.google.com/">
<link rel="match" href="percentage-widths-001-ref.html">
<meta name="assert" content="Checks that we correctly size percentage-sized
children of absolute-positioned flex boxes">
<style>
body {
position: relative;
width: 600px;
height: 800px;
}
#container {
background-color: red;
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
display: flex;
flex-direction: row;
}
#top-bar {
background-color: green;
width: 20%;
}
#content {
background-color: blue;
flex-basis: 100%;
}
</style>
<div id="container">
<div id="top-bar">
Tests that percentage widths get resolved correctly when the flexbox is
</div>
<div id="content">
absolutely positioned without an explicit width. You should see no red.
</div>
</div>