.rtop,.rbottom{display:block}
.rtop *,.rbottom *{display:block;height: 1px;overflow: hidden}
.r1{margin: 0 5px; display:none;}
.r2{margin: 0 3px; display:none;}
.r3{margin: 0 2px; display:none;}
.r4{margin: 0 1px;height: 1px}

.rs1{margin: 0 2px}
.rs2{margin: 0 1px}