body
{
    background-color: black;
    background-image: url(https://haleyweeks1.files.wordpress.com/2012/07/haleybackground3.jpg);
    
}

.centering
{
    
    position:fixed;
    overflow:auto;
    height: 100%;
    top: 50%;
    left: 50%;
    
    transform: translate(-50%, -50%);
    
    width: 800px;
    background-color: white;
    border-width: 10px;
    border-style: solid;
    border-color: dodgerblue;
    padding: 5px;
}

.centering p
{
    margin: 0;
    padding: 0;
}

h2
{
    position: relative;
    left: 40px;
    
}

.Pong
{
    position: relative;
    left: 40px; 
}

#Markus
{
    position: relative;
    left:50%;
    transform: translate(-50%);
    width: 200px;
    border-width: 10px;
    border-style: solid;
    border-color: darkblue;
}