body {
    margin: 0;
    padding: 0;
}

#canvas {
    background: -webkit-gradient(
        linear, left top, left bottom, from(#FFF), to(#EEE), color-stop(.5, #FFF)
    );
    background: -moz-linear-gradient(#FFF, #FFF, #EEE);
    background: linear-gradient(#FFF, #FFF, #EEE);
}