body {
line-height: 1.7em; 
font-family: Arial, Helvetica, sans-serif; 
color: #ffffff; 
background-color: #666666; 
position: relative;
font-size: 18px;
}
/* unvisited link */
a:link {
  color: red;
}
/* visited link */
a:visited {
  color: green;
}
/* mouse over link */
a:hover {
  color: hotpink;
}
/* selected link */
a:active {
  color: yellow;
}