li {list-style-image: none; list-style-position: outside; list-style-type: none;}
#leftlist{width:104px; height:335px; background:url(right_img_bg.gif);}
#leftlist a{font:14px/29px simsun; color:white; text-decoration:none;}
#leftlist a:hover{font-weight:bold; color:yellow;}
#leftlist span{position:absolute; width:88px; height:30px; background:url(right_img_button.gif); text-align:center;}
#leftlist .btn1{left:9px; top:255px;}
#leftlist .btn2{left:9px;top:290px;}

#ad{display:none; position:fixed; width:423px; height:226px; background:url(windows.gif); z-index:100;}
#ad img{position:absolute; top:-5px; right:-5px; width:28px; height:28px; cursor:pointer;}
#ad span{position:absolute; width:98px; height:31px; background:url(button.gif); text-align:center;}
#ad span a{font:14px/31px simsun; color:white; text-decoration:none;}
#ad span a:hover{font-weight:bold; color:yellow;}
#ad .btn3{left:190px; bottom:15px;}
#ad .btn4{left:300px; bottom:15px;}