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

canvas {
    background-color: #04122f; }


.center-div
{
    position: absolute;
    margin: auto;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    width: 600px;
    height: 100px;
    border-radius: 3px;
    font-size: 3.0em;
    color: white;
}