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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-flexbox/box-sizing-001.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<html>
<title>CSS Flexbox: box-sizing</title>
<link href="support/flexbox.css" rel="stylesheet">
<meta name="assert" content="This test checks the interactions between the flex layout mode and the two possible values for the box-sizing property: border-box and content-box" />
<style>
.flexbox {
border: 2px solid orange;
}
.h3 {
height: 300px;
}
.w3 {
width: 300px;
}
.h4 {
height: 400px;
}
.w4 {
width: 400px;
}
.border-box, .flexbox > div {
box-sizing: border-box;
height: 100px;
width: 100px;
border: 2px solid lightblue;
border-top-width: 4px;
padding: 3px;
}
</style>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/check-layout-th.js"></script>
<body>
<div id=log></div>
All blue boxes are 100x100px with box-sizing: border-box and 2px border (4px border-top), we expect offsetWidth/Height to be <b>100x100</b>
<h3>flex-flow: default, orange box has width: 300px</h3>
<div class="flexbox" style="width: 300px">
<div></div><div></div><div></div>
</div>
<h3>flex-flow: default, orange box has width: 400px</h3>
<div class="flexbox" style="width: 400px">
<div></div><div></div><div></div>
</div>
<h3>flex-flow: default, orange box has width: auto</h3>
<div class="flexbox">
<div></div><div></div><div></div>
</div>
<h3>flex-flow: default, orange box has width: auto, flex-box has box-sizing: border-box</h3>
<div class="flexbox border-box">
<div data-expected-width=30></div>
<div data-expected-width=30></div>
<div data-expected-width=30></div>
</div>
<h3>flex-flow: column, red box has height: 300px</h3>
<div class="flexbox column" style="height: 300px">
<div></div><div></div><div></div>
</div>
<h3>flex-flow: column, red box has height: 400px</h3>
<div class="flexbox column" style="height: 400px">
<div></div><div></div><div></div>
</div>
<h3>flex-flow: column, red box has height: auto</h3>
<div class="flexbox column">
<div></div><div></div><div></div>
</div>
<h3>flex-box has box-sizing: border-box and flex-wrap: wrap;</h3>
<div class="flexbox column wrap" style="box-sizing: border-box; border: 2px solid lightblue; padding: 3px; height: 200px; width: 100px; position: relative" data-expected-width=100 data-expected-height=200>
<div data-offset-x=3></div><div data-offset-x=103></div><div data-offset-x=203></div>
</div>
<h3>flex-box has box-sizing: default and flex-wrap: wrap;</h3>
<div class="flexbox column wrap" style="border: 2px solid lightblue; padding: 3px; height: 200px; width: 100px; position: relative" data-expected-width=110 data-expected-height=210>
<div data-offset-x=3></div><div data-offset-x=3></div><div data-offset-x=103></div>
</div>
<h3>flex-flow: column, flex-box has box-sizing: border-box, flex items have flex: 1</h3>
<div class="flexbox column" style="box-sizing: border-box; border: 2px solid lightblue; padding: 3px; height: 343px; width: 100px;" data-expected-width=100 data-expected-height=343>
<div style="flex: 1;" data-expected-height=111></div>
<div style="flex: 1;" data-expected-height=111></div>
<div style="flex: 1;" data-expected-height=111></div>
</div>
<script>
function addExpectedSizes(flexItem) {
if (!flexItem.hasAttribute('data-expected-height'))
flexItem.setAttribute('data-expected-height', 100);
if (!flexItem.hasAttribute('data-expected-width'))
flexItem.setAttribute('data-expected-width', 100);
}
[].forEach.call(document.querySelectorAll(".flexbox > div"), addExpectedSizes);
[].forEach.call(document.querySelectorAll(".border-box"), addExpectedSizes);
checkLayout('.flexbox');
</script>
</body>
</html>