gecko/layout/reftests/flexbox/flexbox-sizing-vert-1.xhtml

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<?xml version="1.0" encoding="UTF-8"?>
<!--
Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/
-->
<!--
This testcase checks how "min-height" and "max-height" affect the sizing
of vertical flex containers that have no explicit "height" property.
-->
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<style>
div { width: 10px; }
div.flexbox {
float: left;
border: 1px dashed blue;
font-size: 10px;
display: flex;
flex-direction: column;
margin-right: 2px;
}
div.a {
flex: 1 20px;
max-height: 60px;
background: lightgreen;
}
div.b {
flex: 1 20px;
min-height: 40px;
max-height: 60px;
background: purple;
}
div.c {
flex: 1 40px;
max-height: 10px;
max-height: 60px;
background: orange;
}
</style>
</head>
<body>
<!-- floated auto-sized vertical flexbox should shrinkwrap its flex items'
hypothetical main sizes (their flex base sizes, clamped to min/max) -->
<div class="flexbox">
<div class="a"/><div class="b"/><div class="c"/>
</div>
<!-- Adding a small min-size shouldn't affect that. -->
<div class="flexbox" style="min-height: 10px">
<div class="a"/><div class="b"/><div class="c"/>
</div>
<!-- ...nor should a large max-size. -->
<div class="flexbox" style="max-height: 300px">
<div class="a"/><div class="b"/><div class="c"/>
</div>
<!-- OK. Now, if we set a minimum size that's larger than the shrinkwrap
size, we should jump up to that size.-->
<div class="flexbox" style="min-height: 120px">
<div class="a"/><div class="b"/><div class="c"/>
</div>
<!-- ...even if it's large enough that our items won't occupy all the
space. -->
<div class="flexbox" style="min-height: 200px">
<div class="a"/><div class="b"/><div class="c"/>
</div>
<!-- If we set a maximum size that's smaller than the shrinkwrap size,
we should max out at that size.-->
<div class="flexbox" style="max-height: 70px">
<div class="a"/><div class="b"/><div class="c"/>
</div>
<!-- The max-size may be small enough that our items will overflow. -->
<div class="flexbox" style="max-height: 20px">
<div class="a"/><div class="b"/><div class="c"/>
</div>
<!-- But if we add a min-size, it beats the max-size. Here, we use a
min-size smaller than the sum of the items' base sizes... -->
<div class="flexbox" style="min-height: 58px; max-height: 20px">
<div class="a"/><div class="b"/><div class="c"/>
</div>
<!-- ...and here we use a min-size larger than the sum of the items'
base sizes. -->
<div class="flexbox" style="min-height: 140px; max-height: 20px">
<div class="a"/><div class="b"/><div class="c"/>
</div>
</body>
</html>