.pic_sjdoi{
    width:1000px;}
.pic_sjdoi li{
    width:215px;
    float:left;
    height:240px;
    margin-bottom:20px;
    margin-right:30px;
    text-align:center;}
.pic_sjdoi li img{
    width:215px;
    height:200px;}
.pic_sjdoi li a{
    display:block;}
.pic_sjdoi li .titt_pic{
    height:40px;
    line-height:40px;
    text-align:center;
    color:#333;
    font-size:15px;}
.center_footer{width:150px;margin-top:15px;text-align:center;}