纯CSS美化单选/复选框

.ul_box {
	margin:0 auto;
	padding:0;
	list-style:none;
	width:600px;
}
.ul_box>li {
	padding:10px 10px 0 10px;
	overflow:hidden;
	border-bottom:#e5e5e5 solid 1px;
}
.ul_box>li:last-child {
	border-bottom:none;
}
.ul_box>li>div {
	float:left;
}
.ul_box>li>div:nth-child(1) {
	width:100px;
}
.ul_box>li>div:nth-child(2) {
	width:480px;
	overflow:hidden;
}
.label_box>label {
	display:block;
	float:left;
	margin:0 10px 10px 0;
	position:relative;
	overflow:hidden;
}
.label_box>label>input {
	position:absolute;
	top:0;
	left:-20px;
}
.label_box>label>div {
	width:100px;
	text-align:center;
	border:#dddddd solid 1px;
	height:40px;
	line-height:40px;
	color:#666666;
	user-select:none;
	overflow:hidden;
	position:relative;
}
.label_box>label>input:checked + div {
	border:#d51917 solid 1px;
	color:#d51917;
}
.label_box>label>input:checked + div:after {
	content:'';
	display:block;
	width:20px;
	height:20px;
	background-color:#d51917;
	transform:skewY(-45deg);
	position:absolute;
	bottom:-10px;
	right:0;
	z-index:1;
}
.label_box>label>input:checked + div:before {
	content:'';
	display:block;
	width:3px;
	height:8px;
	border-right:#ffffff solid 2px;
	border-bottom:#ffffff solid 2px;
	transform:rotate(35deg);
	position:absolute;
	bottom:2px;
	right:4px;
	z-index:2;
}