.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}

.rr1{margin: 0 5px 0 0;}
.rr2{margin: 0 3px 0 0}
.rr3{margin: 0 2px 0 0}
.rr4{margin: 0 1px 0 0;height: 2px}

.rl1{margin: 0 0 0 5px}
.rl2{margin: 0 0 0 3px}
.rl3{margin: 0 0 0 2px}
.rl4{margin: 0 0 0 1px;height: 2px;}