gecko-dev/layout/reftests/w3c-css/submitted/flexbox/flexbox-sizing-horiz-001.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-width" and "max-width" affect the sizing
of horizontal flex containers that have no explicit "width" property.
-->
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>CSS Test: Testing sizing of an auto-sized horizontal flex container with min-width and max-width constraints</title>
<link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"/>
<link rel="help" href="http://www.w3.org/TR/css-flexbox-1/#layout-algorithm"/>
<link rel="match" href="flexbox-sizing-horiz-001-ref.xhtml"/>
<style>
div { height: 10px; }
div.flexbox {
border: 1px dashed blue;
font-size: 10px;
display: flex;
margin-bottom: 2px;
}
div.a {
flex: 1 20px;
max-width: 60px;
background: lightgreen;
}
div.b {
flex: 1 20px;
min-width: 40px;
max-width: 60px;
background: purple;
}
div.c {
flex: 1 40px;
min-width: 10px;
max-width: 60px;
background: orange;
}
</style>
</head>
<body>
<!-- auto-sized horizontal flexbox should occupy the available width. -->
<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-width: 10px">
<div class="a"/><div class="b"/><div class="c"/>
</div>
<!-- ...but a (large) max-size will limit us to that size, instead of
our available size.-->
<div class="flexbox" style="max-width: 300px">
<div class="a"/><div class="b"/><div class="c"/>
</div>
<!-- If we set a maximum size that's even smaller, it'll limit our
size and compress our children. -->
<div class="flexbox" style="max-width: 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-width: 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-width: 58px; max-width: 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-width: 140px; max-width: 20px">
<div class="a"/><div class="b"/><div class="c"/>
</div>
</body>
</html>