page{
">;
}
.wrap{
width:100%;
font-family: PingFang-SC-Medium;
}
image,
input{
display: block;
}
/* 清浮动 */
.clear{ zoom:1;}
.clear:after{ content:""; display:block; clear:both;}
.fl{ float: left; }
.fr{ float: right;}
原文：http://www.cnblogs.com/weiwentaweb/p/8064032.html