.solution_canvas{position:relative;padding-left:20px}.solution_canvas .draw_icon{position:absolute;left:1px;top:0;width:16px;height:16px;border:1px solid silver;text-align:center;cursor:pointer}.solution_canvas .draw_icon.active{border:1px solid red}.solution_canvas .svg{position:absolute;left:20px;top:0}.disk_save{background-image:url(/img/disk.png)}.saved{background-image:url(/img/disk-saved.png)}