<html>
<head>
<style type="text/css">
div {
width: 50px;
height: 50px;
border: 50px solid black;
margin: 10px;
}
</style>
</head>
<body>
<!-- Check behavior of prefixed border-radius with two values. -->
<div style="-webkit-border-radius: 30px 75px;"></div>
<div style="border-radius: 30px / 75px;"></div>
</body>
</html>