body {
    margin: 0; 
    padding: 0; 
    background-color: black; 
}

.content {
    margin-left: auto; 
    margin-right: auto; 
    width:1024px; 
    height: 1536px;
}

#unityPlayer {
    margin-left: auto; 
    margin-right: auto; 
    height: 1536px;
}

.exit-button 
{
    background-image: url('../images/layout/ExitButton.jpg');
    display: block;
    height: 71px;
    position: absolute;
    width: 70px;
    border: 0;
    right: 0;
}