*{ margin:0px; padding:0px;}
body 
{
    line-height:1.5;
    font-family:微软雅黑;
}
a{ text-decoration:none;}
ul,li{ list-style:none; }
img{ max-width:100%; vertical-align:middle; }
.jqfree     
{
    max-width: 630px; 
    position: relative;
    overflow: hidden; 
    margin:40px;
 }