Try it Editor: Set Shape

Edit This Code :

<!DOCTYPE html>
<html>
<head>
<style>
#grad1 {
    height: 150px;
    width: 200px;
    background: -webkit-radial-gradient(red, yellow, green); /* For Safari 5.1 to 6.0 */
    background: -o-radial-gradient(red, yellow, green); /* For Opera 11.6 to 12.0 */
    background: -moz-radial-gradient(red, yellow, green); /* For Fx 3.6 to 15 */
    background: radial-gradient(red, yellow, green); /* Standard syntax (must be last) */
}

#grad2 {
    height: 150px;
    width: 200px;
    background: -webkit-radial-gradient(circle, red, yellow, green); /* For Safari 5.1 to 6.0 */
    background: -o-radial-gradient(circle, red, yellow, green); /* For Opera 11.6 to 12.0 */
    background: -moz-radial-gradient(circle, red, yellow, green); /* For Fx 3.6 to 15 */
    background: radial-gradient(circle, red, yellow, green); /* Standard syntax (must be last) */
}
</style>
</head>
<body>

<h3>Radial Gradient - Shapes</h3>

<p><strong>Ellipse (this is default):</strong></p>
<div id="grad1"></div>

<p><strong>Circle:</strong></p>
<div id="grad2"></div>

<p><strong>Note:</strong> Internet Explorer 9 and earlier versions do not support gradients.</p>

</body>
</html>
Result :