body {
   margin: 0; padding: 0.5em 1em;
   font: medium arial, helvetica, sans-serif;
}
#error {
   color: red;
}
.code {
   float: left;
   border:inset 2px gray;
   margin: 0;
   padding: 0.5em;
   background: #eef;
}
fieldset {
   margin: 1em 0;
   padding: 0.6em;
}
legend {
   font-size: 110%;
   font-weight: bold;
}
#nav {
   list-style: none;
   background-color: #029;
   color:white;
   margin: -0.5em -1em 0.5em;
   padding: 0.33em 1em;
}
#nav li {
   display: inline;
   font-size: 92%;
   padding: 0 1.25em 0 0;
}
#nav li a {
   color: white;
   text-decoration:none;
   font-weight: bold;
}
#nav li a:hover {
   text-decoration: underline;
}
#hide {
   display: none;
   position: absolute;
   background: transparent url(trans.gif) repeat 0 0;
   width: 100%;
   height: 100%;
   top: 0;
   left: 0;
   z-index: 99;
   margin: 0;
   padding: 0;
}
#hide p {
   background-color: white;
   border: outset 2px gray;
   padding: 1em;
   margin: 200px 100px;
}