/* 浮动 */

.clear{zoom:1;clear:both;}

.clear:after{content:""; clear:both; height:0; line-height:0; display:block; visibility:hidden;}

.fl1{float:left;display:inline;}

.fr1{float:right;display:inline;}

article,aside,details,figcaption,figure,footer,header,hgroup,main,menu,nav,section,summary {display: block;}