h1 { font-size: 200% }
  h2 { font-size: 150% }
  h3 { font-size: 100% }
  body { background-image: url(bgrnd.gif);
  margin: 0 2em; 
  text-align: center;
  }
  
  #header { 
  /*  background-color: gold; */
  padding: 0em; 
  text-align: center;
  font-style: italic;
  }
  
  #navigation { 
  position: absolute;
  top: 10em;
  left: 2em;
  width: 10em;
  background-color: wheat;
  padding: 1em;  
  }
  
  #content {  
  padding: 1em;
  }
  
  #footer {
  clear: both;
  padding: 1em;
  text-align: center;
  }
  
  .left {float: left; width: 50%; }
  .right {float: right; width: 50%; }
  
img.fifty {
width: 50%;
height: 50%;
} 
  
div.figure {
  float: right; 
  width:30%;
  border: thin silver solid;
  margin: 0.5em;
  padding: 0.5em;
}

img.scaled {
  width: 30%;
}  
img.twenty {
  width: 20%;
}

.center {text-align: center; }