#nav {display:block; width:1000px; float:left; font-size:12px; color:#ffffff; font-weight:bold;}
#nav .mainlevel {float:left;text-align:center; display:block;font-size:12px; color:#ffffff; font-weight:bold;}
#nav .mainlevel a { text-decoration:none; line-height:34px; height:34px; text-align:center; display:block;width:109px;font-size:12px; color:#ffffff; font-weight:bold;}
#nav .mainlevel a:hover {font-size:12px; color:#ffffff; font-weight:bold text-decoration:none;}
#nav .mainlevel ul {position:absolute; display:none; *width:2000px;/*IE is great need, width>=li.length*/}
#nav .mainlevel li {float:left;}
#nav .mainlevel li a { line-height:26px; height:26px; display:block; width:106px; background:url(../images/06.png) no-repeat left #fff; margin-right:1px; font-weight:normal; overflow:hidden;}
#nav .mainlevel li a:hover {color:#fff; text-decoration:none; background:#d50811; display:block; font-weight:bold;overflow:hidden;}
#nav li a em/*input an em tag as a space*/ {padding:0 3px;}
.note {color:#fff; display:block; line-height:34px; width:109px;}
.log {margin:100px auto; width:1000px; text-transform:capitalize; line-height:200%;}
.yi{ width:1000px; height:454px;}
.sub_yi{ width:1000px; height:462px;}