.rtop,.rbottom{display:block}
.rtop *,.rbottom *{display:block;height: 1px;overflow: hidden}
.r1{margin: 0 5px}
.r2{margin: 0 3px}
.r3{margin: 0 2px}
.r4{margin: 0 1px;height: 2px}

.rs1{margin: 0 2px}
.rs2{margin: 0 1px}
div#container{width:500px;margin: 0 auto;text-align:left}
div#content{background: #9DD4FF;width:350px}
div#nav{float: right;width:140px;background: #E5FFC4}
div#nav p{padding: 5px 0}
div#nav h2{font-size: 110%;color: #333}