body {
 background-image: url("galaxytile.gif");
  background-repeat: repeat;

}

body {
  
  text-align: center;
  line-height: 150%;
  width: 60%;
  padding-left: 20%;
 color: #FFFFFF
 
}

a:visited {
  color: red;
}

a:hover {
  color: green;
}

a:active {
  color: limegreen;
}

footer {
  color: gray;
}