body{background:transparent url(../images/test_bg.jpg) no-repeat fixed center center;background-size:cover}article .topic{position:absolute;display:block;width:100%;height:100%;top:0;left:0;background:transparent url() no-repeat fixed center center;background-size:cover}article a.select{position:absolute;display:block}article a.select.in,article a.select:hover{background:transparent url(../images/test_select.png) no-repeat center center;background-size:70%}article .button_next{position:absolute;display:block}article .button_next img{width:100%;height:100%}article .button_next:hover img{-webkit-filter:contrast(120%);filter:contrast(120%)}article .box_bg{position:absolute;display:none;width:100%;height:100%;background-color:#382717;opacity:.7}article .box_msg{position:absolute;display:none;background:transparent url() no-repeat center center;background-size:contain}article .box_msg .close{position:absolute;display:block;background:transparent url(../images/test_button_close.png) no-repeat center center;background-size:contain}article .box_msg .close:hover{-webkit-filter:contrast(120%);filter:contrast(120%)}