.twenty20{margin-bottom:20px}.twentytwenty-container{z-index:0;overflow:hidden;position:relative;-webkit-user-select:none;-moz-user-select:none}.twentytwenty-container img{max-width:100%;width:100%;position:absolute;top:0;display:block}.twentytwenty-container,.twentytwenty-container *{-webkit-box-sizing:content-box;-moz-box-sizing:content-box;box-sizing:content-box}