.vortex-graph{flex-grow:0;flex-shrink:0;position:relative}.vortex-graph button{text-indent:-9999em;position:absolute}.vortex-graph .btn-0{width:32%;height:14%;top:41.4%;left:68%}.vortex-graph .btn-1{width:27%;height:18%;top:82%;left:35%}.vortex-graph .btn-2{width:30%;height:14%;top:41.4%;left:0}.vortex-graph .btn-3{width:27%;height:14%;top:0;left:35%}