/* Non-essential Styles */
h2    { margin:0; font-size:1.1em; text-align:left; }
h3    { margin:0; font-size:1em; }


/* Essential Styles */

*.oi       { background-color:gold;
             border-left:1px solid gray; border-right:2px solid black; 
             border-top:1px solid gray; border-bottom:2px solid black; }

#nav       { float:left; width:25%; min-width:170px; }
#nav *.oi  { min-height:150px; margin:0; padding:5px; }

#main      { float:left; width:75%; min-width:170px; }
#main *.oi { min-height:150px; margin-left:80px; padding:5px; padding-left:80px; }