清除浮动的三种方式
.clearfix:before, .clearfix:after {
content:"";
display:table;
}
.clearfix:after{
clear:both;
overflow:hidden;
}
.clearfix{
zoom:1;
}
content:"";
display:table;
}
.clearfix:after{
clear:both;
overflow:hidden;
}
.clearfix{
zoom:1;
}
.clear:after{
display: block;
content: "";
clear: both;
/*visibility: hidden;*/
/*height: 0;*/
}