body { width: 50%; background-color: #ffccff; color:purple }
h1 { background-color: silver; color: black; font-weight: bold }
h2 { background-color: cyan; color: blue; font-weight: bold }
h3 { background-color: white; color: navy }
pre { width: 110%; border-color:olive; border-width:10px;
      border-style:double; padding-top: 5px; 
      padding-bottom: 10px; padding-left: 10px; }
table { border-style: dotted }
th { color: blue; border: 5px solid black }
td { background-color: yellow;   border:5px solid black }