标签：class 溢出 clear strong play bsp splay css color
清除浮动
.clearfix:after{
content:”.”;
display:block;
height:0;
clear:both;
visibility:hidden;
}
清除margin溢出问题
.overflow:before{
content: ".";
display: block;
height: 0;
visibility: hidden;
}
标签：class 溢出 clear strong play bsp splay css color
原文地址：http://www.cnblogs.com/duanyue/p/7307878.html
