图片垂直居中

.show-pro .content dl dt{height:480px;line-height:480px;text-align:center;overflow:hidden;display:table-cell;vertical-align:middle;
        *float:left;*font-family:simsun;*font-size:200px;*line-height:1;}
.show-pro .content dl dt img{vertical-align:middle;}