h1 {color: white;}
h2 {color: white;}
h3 {color: white;}
h4 {color: white;}
h6 {color: white;}
body {background-color: DimGray; font-family: 'Courier New', monospace;}
a:link{color: Aqua; text-decoration: none}
a:visited{color: Lime; text-decoration: none}	
.center {text-align: center;}
.aa {visibility: hidden;}