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Test Info:

<!DOCTYPE html>
<!--
Any copyright is dedicated to the Public Domain.
-->
<html>
<head>
<title>
CSS Test: "flex-basis" and "flex" shouldn't impact child sizing inside of
horizontal "display: -webkit-box" container
</title>
<style>
.box {
display: -webkit-box;
border: 1px solid black;
margin: 5px 20px;
width: 100px;
float: left; /* For testing in "rows" */
font: 10px serif;
}
.box > *:nth-child(1) { background: turquoise; }
.box > *:nth-child(2) { background: salmon; }
.mw0 {
/* Used in some children here, to disable modern-flexbox's
"implied-minimum-size" feature, so that it can't inadvertantly
be the thing that makes our rendering match the reference . */
min-width: 0;
}
br { clear: both; }
/* The point of this testcase is to verify that none of the modern-flexbox
styles below have any effect on the rendering. (This is worth checking
because we coopt our modern-flexbox implementation in our emulation of
legacy -webkit-box behavior.) */
.fb0 { flex-basis: 0; }
.f1 { flex: 1; /* This shorthand sets flex-grow:1; flex-basis: 0 */ }
.fb30px { flex-basis: 30px; }
.f1_30px { flex: 1 30px; }
</style>
</head>
<body>
<!-- FIRST ROW: flex-basis is 0 -->
<div class="box">
<div class="fb0">a</div>
<div class="fb0 mw0">b</div>
</div>
<div class="box">
<div class="f1">a</div>
<div class="f1 mw0">b</div>
</div>
<br>
<!-- SECOND ROW: flex-basis is 30px -->
<div class="box">
<div class="fb30px">a</div>
<div class="fb30px mw0">b</div>
</div>
<div class="box">
<div class="f1_30px">a</div>
<div class="f1_30px mw0">b</div>
</div>
</body>
</html>