.top, .bottom {display:block; height:5px; position:relative;}
.top1, .bottom1 {display:block; height:1px; position:relative;}
.left1 {width:5px; height:1px; position:absolute; left:0px; top:0px; border-style:solid; border-width:0px 1px 0px 0px;}
.right1 {width:5px; height:1px; position:absolute; right:0px; top:0px; border-style:solid; border-width:0px 0px 0px 1px;}
.middle1 {width:100%; height:1px; position:absolute; top:0px; left:0px; right:0px; bottom:0px; border-width:1px 0px 0px 0px; border-style:solid}
.top2, .bottom2 {display:block; height:1px; position:relative;}
.left2 {width:3px; height:1px; position:absolute; left:0px; top:0px; border-style:solid; border-width:0px 2px 0px 0px;}
.right2 {width:3px; height:1px; position:absolute; right:0px; top:0px; border-style:solid; border-width:0px 0px 0px 2px;}
.middle2 {width:100%; height:1px; position:absolute; top:0px; left:0px; right:0px; bottom:0px;}
.top3, .bottom3 {display:block; height:1px; position:relative;}
.left3 {width:2px; height:1px; position:absolute; left:0px; top:0px; border-style:solid; border-width:0px 1px 0px 0px;}
.right3 {width:2px; height:1px; position:absolute; right:0px; top:0px; border-style:solid; border-width:0px 0px 0px 1px;}
.middle3 {width:100%; height:1px; position:absolute; top:0px; left:0px; right:0px; bottom:0px;}
.top4, .bottom4 {display:block; height:2px; position:relative;}
.left4 {width:1px; height:2px; position:absolute; left:0px; top:0px; border-style:solid; border-width:0px 1px 0px 0px;}
.right4 {width:1px; height:2px; position:absolute; right:0px; top:0px; border-style:solid; border-width:0px 0px 0px 1px;}
.middle4 {width:100%; height:2px; position:absolute; top:0px; left:0px; right:0px; bottom:0px;}