*{box-sizing: border-box;-moz-box-sizing:border-box;-webkit-box-sizing:border-box;margin:0px;padding:0px;}
body{margin:10px;}
a{text-decoration:none;color:#574e4e;}
.w100{width:100%;} 
.w50{width:50%;} 

/*底部*/
.btmBox{width:100%;height:60px;position:fixed;left:0px;bottom:0px;z-index:333;overflow:hidden;border-top:1px solid #c9c9c9;background:#fff;}
.btmBox .list{float:left;width:25%;text-align:center;height:30px;line-height:30px;margin-top:15px;font-size:14px;color:#1a1414; }
.btmBox .sel{color:red;text-decoration-line: overline;}