📅  最后修改于: 2022-03-11 14:47:41.783000             🧑  作者: Mango
.clearfix:after {
clear: both;
content: " ";
display: block;
font-size: 0;
height: 0;
visibility: hidden;
}
.clearfix { display: inline-block; }
* html .clearfix { height: 1%; }
.clearfix { display: block; }