.fl{
	float:left;
}
.fr{
	float:right;
}
.clearfix:after{
	content:"";
	display:block;
	width:100%;
	height:0;
	clear:both;
}
 .relative{
 	position: relative;
 }
 .absolute{
 	position: absolute;
 }
 .fixed{
 	position: fixed;
 }
 .text_over{
 overflow: hidden;
text-overflow: ellipsis;
display: -webkit-box;
-webkit-line-clamp: 2;
-webkit-box-orient: vertical;
 }
 .text{
 	width: 100%;
	overflow: hidden;text-overflow: ellipsis;
	white-space: nowrap;
 }
 .block{
 	display: block;
 }
  .none{
 	display: none;
 }