.wenjian {
width:90%;
padding-left:10%;
list-style-type: none;}
.wenjian a{
width:80%;
float:left;
font-size:16px;
line-height:50px;
border-bottom:dashed 1px #ccc;
background-image:url(images/point.png);
background-repeat: no-repeat;
background-position: left center;
padding-left:50px;}