body {
    font-family:Tahoma;
    font-size:9pt;
}
.layers {
    position:relative;
    float:left;
    
}

.layers > canvas {
    position:absolute;
    left:0px;
    top:0px;
}

.tilesetWrapper {
    position:relative;

    float:left;
    clear:both;
}

.tilesetWrapper > img,canvas {
    position:absolute;
}