*{margin:0px;}
#shipin{ width:100% ;height:900px;}
#fanhui{display: block;margin-top: 20px;position: absolute;left: 50%;}
#fanhui a{text-decoration: none; font-family: sans-serif;font-weight: 600;color: #0D415B;font-size: 20px;text-align: center;}