1 /*方法一*/ 2 /*局部清除*/ 3 .clr:after{content:".";height:0;visibility:hidden;display:block;clear:both;} 4 .clr{display:inline-block;} 5 .clr{display:block;} 6 /*彻底清除*/ 7 .clear{height:0;clear:both;overflow:hidden;} 8 9 10 11 /*方法二*/ 12 .clearfix:before,.clearfix:after{ 13 content:""; 14 display:table; 15 } 16 .clearfix:after{clear:both;} 17 .clearfix{ 18 *zoom:1;/*IE/7/6*/ 19 }