html
{
    width: 100%;
    height: 100%;
}

body 
{
    background-image: url(../img/karel.jpg);
    background-repeat:no-repeat;
    background-color: Black;
    width: 100%;
    height: 100%;
    margin: 0px;
    color: White;
}

Div#Menu
{
    position: absolute;
    left: 20px;
    top: 100px;
}