.sp_minipre{background: transparent url('https://1.images.mnstatic.com/minipre/sp_minipre_v7.png') no-repeat;background-size: 60px;}.minipre_block{float: left;width: 100%;height:100%;}.minipre_container{float: left;width: 100%;height: 100%;display: none;}.minipre_container div,.minipre_container iframe{width: 100%;height: 100%;}.minipre_container.showed{display: inline;}