* {
	border:0;
	margin: 0;
	padding: 0;
}
*{
	box-sizing: border-box;
}
body {
	font-size: 14px;
	font-family: "microsoft yahei";
}
li i{
	font-style: normal;
}
a{
	text-decoration:none;
}
.clearboth::after {
	content: '';
	display: block;
	clear: both;
}
.w1200 {
	width: 1200px;
	margin: 0 auto;
}
.margin-auto {
	margin: 0 auto;
}

.fr {
	float: right;
}
.fl {
	float: left;
}
.padding10 {
	padding: 10px;
}
.plr10{
	padding: 0 10px;
}
.ptb10{
	padding: 10px 0 ;
}
.margin10 {
	margin: 10px;
}
.mlr10 {
	margin: 0 10px;
}
.mtb10 {
	margin: 10 0px;
}

.padding20 {
	padding: 20px;
}
.plr20{
	padding: 0 20px;
}
.ptb20{
	padding: 20px 0 ;
}
.margin20 {
	margin: 20px;
}
.mlr20 {
	margin: 0 20px;
}
.mtb20 {
	margin: 20 0px;
}