hr {  width: 95% }
body { background: #EEEEEE}
h1, h2, h3, h4 { font-family: arial, helvetica, sans-serif }
code { color: green }
pre { margin-left: 2% }
h1 { color: #404; 
  font-size: 175% 
}
h2 { color: #606 }
h3, h4 { color: #806 }
ul { list-style-type: square }