<html>
<head>
<title>CSS3 media query test: media query testing constraints with relative values (screen and (min-height: 30ex)). Using style element, @media css rule.</title>
<link rel="help" href="http://www.w3.org/TR/css3-mediaqueries/#width" />

<style type="text/css">
p { color: red }
@media screen and (min-height: 30ex) {
p { color: green }
}
</style>
</head>
<body>

<p> This text should be green if height is at least 30ex .</p>

<div style="display:inline; float:left; height: 30ex; background-color: lightblue;"> div of height 30ex </div>
<div style="display:inline; float:left; height: 600px; background-color: lightblue;"> div of height 600px </div>
</body>
</html>