A:link { color: #FF00FF; }
A:visited { color: #FF00FF; }
A:active { color: #FF00FF; }
body { color:white; background-color:black; }
A.switch:link { color: white; }
A.switch:visited { color: white; }
A.switch:active { color: white; }
div#center {  
text-align:center;
width: 500px;  
height: 400px;  
position: absolute;  
top: 50%;  
left: 50%;  
margin: -200px 0 0 -250px;  
}