.rtop,.rbottom{display:block}
.rtop *,.rbottom *{
	display:block;
	overflow: hidden;
	height: 1px;
}
.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}