div#fundo{margin:0 auto;width: 900px;height: 600px;}
div#topo{ width: inherit;height: 100px;background-image: url(jbac.png)}
div#conteudo{width:inherit;height: 700px;background-color: #ffcc66;float: right}
div#fechamento{width:900px;height: 30px;background-color: #cccccc;float: right}
iframe{width: 896px;height: 530px; background: white;}
body{background-color: withe;}