* {box-sizing: border-box;}
body {font-family: Microsoft YaHei, Tahoma, Helvetica, Arial, sans-serif;font-size: 16px;}
a {text-decoration: none;}
ul,p,h1,h2,h3,h4,h5,h6 {font-weight: normal;padding: 0px;margin: 0px;list-style-type: none;}
.container {width: 1200px;margin: auto;}
@media (max-width:450px) {.container {width: 100%;margin: auto;}}
.container-fluid {width: 100%;margin: auto;}
/*公共类*/
.fl {float: left}
.fr {float: right}
.al {text-align: left}
.ac {text-align: center}
.ar {text-align: right}
.hide {display: none}
.clearfix:after {content: ".";display: block;height: 0;clear: both;visibility: hidden;}
.clearfix {*zoom: 1;}