html,body, div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre, form, p,span, blockquote, th, td, textarea, input { 
    margin:0;
    padding:0;
}
ul,li{list-style-type: none;}
img{border:0;}
body {
	font-family:"microsoft yahei",helvetica, arial, sans-serif;
    font-size: 16px;
    font-weight:normal;
	color: #333;
}
h1#banner {
    font-family:helvetica, arial, sans-serif;
    padding: 15px; background-color: #06b;
    color: white; 
    font-size:28px; 
    border-bottom: 1px solid #aaa;
    background: url(../images/bg.gif) repeat-x; text-align: center; 
}
      #left{
      	  position:relative;
           width:14%;
           height:598px;
          overflow: scroll;
        }
#left a,#left a:hover{
	text-decoration: none;
    color:#333;
}
        #main{
            position: relative;
        	width:86%;
            height:700px;
            margin-left: 14%; /*防止main位置改变*/
        	margin-top:-598px;
        	background-color:rgba(232,232,232,0.7);
            padding: 15px;
            box-sizing: border-box;
        }
        #left #browser {
        	width:100%;
        }
        #left #browser li{
        	cursor:pointer;
            padding-top:6px;
        	border:1px solid #ccc;
        	border-top:none;
            background-color:#fff;
        }
         #left #browser li li{
         	border:none;
         }