.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.nifty { background: #EEE; }
div.saucy { background: #DEE9EC; }