清空默认样式

@charset "utf-8";
/* CSS Document */
*{ margin:0; padding:0;}
li{ list-style:none;}
a{ text-decoration:none; color:#666;}
img{ vertical-align:top; border:none;}
input{ outline:none; border:none; background:none;}
.fl{ float:left;}
.fr{ float:right;}
.clearfix:after{ content:''; display:block; clear:both; }
body{ font:12px 'Microsoft Yahei';}