fieldset { border:1px solid green; padding: 1em;
  font:1.2em sans-serif;
   }

legend {
  padding: 0.2em 0.5em;
  border:1px solid green;
  color:green;
  font-size:0.9em;
  text-align:left;
  }
  /*
  kode
  */
  pre,
code  {font-family: consolas, courier, monospace;
       font-size: 1.2em;
       text-indent: 0px;
       line-height: 1.2em;
       white-space: pre; 
       background-color: #ccf; 
       color: #000; /* likewise the background-color comment */
       border: 0px solid #666;
       -moz-border-radius: 1em;
       -webkit-border-radius: 1em;
       border-radius: 1em; /* just in case */
       padding: 1em;
       margin: 1.2em 1em;
       width: 90%; /* or whatever you prefer */
       float: left;
       }