*{margin:0;padding:0;font:normal 100% "微软雅黑",Microsoft YaHei,Arial, Helvetica, sans-serif, "宋体";list-style:none;}
body{ margin:0 auto; padding: 0 auto;}
a{ text-decoration:none;outline:none;}
a:focus {outline-style:none; -moz-outline-style: none;}
a{blr:expression(this.onFocus=this.close());}
a{blr:expression(this.onFocus=this.blur());}
img{border:0;vertical-align:middle;width:100%;}
.down_page{width:100%;position:relative;display: block;}
.download{position: fixed;left: 0;bottom: 0;z-index: 1;}
@media screen and (min-width:1200px){
    .down_page{width:750px;margin:0 auto;}
    .download{position: absolute;}
}