rder-width: 0 0 2px 0; top: 0;
	background: url(i/arrow-down.png) no-repeat 83% 100%;
	background-size: 10px auto;}
b.r {border-width: 0 0 0 2px; right: 0;
	background: url(i/arrow-left.png) no-repeat 0% 85%;
	background-size: auto 10px;}
b.b {border-width: 2px 0 0 0; bottom: 0;
	background: url(i/arrow-up.png) no-repeat 17% 0%;
	background-size: 10px auto;}
b.l {border-width: 0 2px 0 0; left: 0;
	background: url(i/arrow-right.png) no-repeat 100% 15%;
	background-size: auto 10px;}

p b i {position: absolute