html, body {
    width              : 100%;
    height             : 100%;
    padding            : 0;
    margin             : 0;
    border             : 0;
}

html.fullscreen, body.fullscreen {
    width              : 100%;
    height             : 100%;
    overflow           : hidden;
}

#my-canvas {
    border             : 1px solid black;
    background-image   : url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADMAAAAzCAMAAAANf8AYAAAABGdBTUEAALGPC/xhBQAAAAFzUkdCAK7OHOkAAAAYUExURUxpcf///////////wCA/////wB7/w6H/3bDZgMAAAAIdFJOUwABAwIQBB8RHT6p9AAAAGJJREFUSMft0OEKgCAMBOC7ben7v3GKpAUVzB9SsG8gKhwbAxyInEnCifBnMNHnp9i3dNQJqNRBWkm/bLWG8hKB+NTUpelQmt98ahvqIfMKIYQQwlpmKzPmCVhK5ZjKfHgHO7OoAi6rfI2ZAAAAAElFTkSuQmCC'); 
}