#container
{
width: 90%;
margin: 5px auto;
background-color: #fff;
color: #333;
border: 1px solid gray;
line-height: 130%;
}

#top
{
padding: 5px;
background-color: #ddd;
border-bottom: 1px solid gray;
}

#ad
{
padding: 5px;
background-color: #ddd;
border-bottom: 1px solid gray;
}

#leftnav
{
float: left;
width: 160px;
margin: 0;
padding: 5px;
}

#rightnav
{
float: right;
width: 320px;
margin: 0;
padding: 5px;
}

#content
{
margin-left: 200px;
border-left: 1px solid gray;
margin-right: 340px;
border-right: 1px solid gray;
padding: 5px;
max-width: 36em;
}

#footer
{
clear: both;
margin: 0;
padding: 5px;
color: #333;
background-color: #ddd;
border-top: 1px solid gray;
}

#leftnav p, #rightnav p { margin: 0 0 5px 0; }
#content h2 { margin: 0 0 1px 0; }