html,
body
{
    height: 100%;
    margin: 0;
    padding: 0;
}
body
{
    background-image: url(../images/bg.png);
}

img#switch
{
    display: block;
    cursor: pointer;
    position: absolute;
}

#spotOff
{
    display: none;
    position: fixed;
    background-color: rgba(0,0,0,0.95);
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}