g-radial-gradient(circle, #f00 0, #ff0 10%, #f00 15%);
}
.test2 {
	background: repeating-radial-gradient(at top left, #f00, #ff0 10%, #080 15%, #ff0 20%, #f00 25%);
}
.test3 {
	background: repeating-radial-gradient(circle closest-corner at 20px 50px, #f00, #ff0 10%, #080 20%, #ff0 30%, #f00 40%);
}
</style>
</head>
<body>
<div class="test"></div>
<div class="test2"></div>
<div class="test3"></div>
</body>
</html>
			</textarea>
			<p><input type="button" value="运行" class="g-btn g-btn-su