<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>CSS Test: First available font defines the 'ex' unit size</title>
<link rel="author" title="Microsoft" href="http://www.microsoft.com/">
<link rel="help" href="http://www.w3.org/TR/CSS21/syndata.html#length-units">
<meta name="flags" content="ahem">
<meta name="assert" content="The 'ex' unit size is defined by the element's first available font.">
<style type="text/css">
body
{
font-size: 40px;
}
p
{
font-size: 12pt;
}
div
{
background: black;
font-family: invalidFont, Ahem;
margin-top: 3px;
}
#test
{
height: 1ex;
width: 1ex;
}
#compare
{
height: 0.8em;
width: 0.8em;
}
</style>
</head>
<body>
<p>Test passes if the two boxes below are the same size.</p>
<div id="test"></div>
<div id="compare"></div>
</body>
</html>