body      {color:white;background-color:navy;}
   a:link    {color:red;}
   a:active  {color:fuchsia;}
   a:visited {color:purple;}
   h1        {color:lime;}
   h2        {color:black;background-color:teal;}
   h3        {text-decoration:underline;}
   h4        {font-style:italic;}