.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);
}

