body {
    background-color: #eee;
    margin: 0;
    overflow: hidden;
}

#drawing_canvas {
    position: absolute;
    margin: auto;
    width: 768px;
    height: 512px;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
}

.handle {
    position: absolute !important;
    border-radius: 50%;
    width: 100px;
    height: 100px;
    z-index: 4;
    border: 1px dashed #DC3522;
}

.center {
    position: absolute;
    width: 16px;
    height: 16px;
    margin: -8px;
    left: 50%;
    top: 50%;
    border-radius: 50%;
    background-color: #DC3522;
}

.ui-resizable-handle {
    width: 12px;
    height: 12px;
    left: 100%;
    top: 100%;
    margin: -6px;
    background-color: #1E1E20;
    cursor: se-resize;
}

.hidden {
    visibility: hidden;
    position: absolute;
}