input[type=radio] {
	/*去除浏览器默认样式*/
    -webkit-appearance:none;
	-moz-appearance:none;
	appearance:none;
	/*自定义样式*/
    position:relative;
	display:inline-block;
	width:20px;
	height:20px;
	border:1px solid #333;
	outline:none;
	cursor:pointer;
	/*设置为圆形，看起来是个单选框*/
    -webkit-border-radius:20px;
	-moz-border-radius:20px;
	border-radius:20px;
	vertical-align:middle;
}
input[type=radio]:after {
	content:'';
	position:absolute;
	width:12px;
	height:12px;
	display:block;
	left:0;
	top:0;
	right:0;
	bottom:0;
	margin:auto;
	background:#17533b;
	-webkit-border-radius:12px;
	-moz-border-radius:12px;
	border-radius:12px;
	-webkit-transform:scale(0);
	-moz-transform:scale(0);
	transform:scale(0);
	/*增加一些动画*/
    -webkit-transition:all ease-in-out 300ms;
	-moz-transition:all ease-in-out 300ms;
	transition:all ease-in-out 300ms;
}
input[type=radio]:checked:after {
	-webkit-transform:scale(1);
	-moz-transform:scale(1);
	transform:scale(1);
}