@-webkit-keyframes bottom1{0%,100%{bottom:40px}50%{bottom:15px}}@-moz-keyframes bottom1{0%,100%{bottom:40px}50%{bottom:15px}}@-o-keyframes bottom1{0%,100%{bottom:40px}50%{bottom:15px}}@keyframes bottom1{0%,100%{bottom:40px}50%{bottom:15px}}.page_banner{background:url("../images/banner/workshop_banner.jpg") no-repeat center center}.workshop_list{padding-top:15px}.workshop_list li{width:392px;margin:0 4px 8px}.workshop_list .imgs_box{width:100%;height:291px}.workshop_list .imgs_box img{max-width:100%;max-height:291px}