gecko-dev/layout/reftests/writing-mode/1172774-percent-margin-1.html

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HTML

<!DOCTYPE html>
<html>
<head>
<title>CSS Writing Modes Test: margin percentage and 'vertical-rl'</title>
<link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">
<meta content="This test checks that percentages on the margin are calculated with respect to the inline-size (width) of the containing block if 'writing-mode' of such containing block is 'horizontal-tb'. In this test, div.outer's computed 'writing-mode' value is 'horizontal-tb' and it is the div.inner's containing block." name="assert">
<style type="text/css">
div.outer
{
background-color: blue;
border: blue solid 3px;
width: 200px;
}
hr
{
background-color: transparent;
border: transparent none 0px;
height: 3px;
margin: 0.5em auto;
}
div.inner
{
background-color: yellow;
height: 50px;
width: 50px;
-ah-writing-mode: vertical-rl;
-webkit-writing-mode: vertical-rl;
writing-mode: tb-rl; /* IE11 */
writing-mode: vertical-rl;
}
div.foo
{
margin-bottom: 2.5%; /* 5px */
margin-left: 50%; /* 100px */
margin-right: 25%; /* 50px */
margin-top: 10%; /* 20px */
}
div.bar
{
margin-bottom: 10%;
margin-left: 25%;
margin-right: 50%;
margin-top: 2.5%;
}
</style>
</head>
<body>
<div class="outer">
<div class="inner foo"></div>
<hr>
<div class="inner bar"></div>
</div>
</body>
</html>