body { 
          background: black;
          color: white;
          font-family: arial, helvetica, sans-serif;
          font-size: 120% 
          }
a:link { color: red }
a:visited { color: yellow }
h1 { 
         font-family: arial, helvetica, sans-serif;
         font-size: 140%;
         font-style: bold 
          }
div.warning { 
          margin-left: 0.5in;
          margin-right: 0.5in;
          color: yellow;
          background: red 
          }
blockquote { 
          background: white;
          color: black;
          font-style: italic;
          font-size: 100% 
          }
/* Background color isn't inherited, so we repeat it
on paras inside block quotes.
*/
blockquote p { background: white }