Rumah > Artikel > hujung hadapan web > 清除浮动类的css
.clearfix:after{ content:<span style="color: #800000">""</span>; height:<span style="color: #800080">0</span><span style="color: #000000">; visibility:hidden; display:block; clear:both;} .clearfix{ zoom:</span><span style="color: #800080">1</span>;}