<dt class="spine spine_1 previous" style="position: absolute; z-index: 3; display: block; left: 0px; width: 330px; height: 50px; padding-top: 0px; padding-right: 20px; padding-bottom: 0px; padding-left: 10px; -webkit-transform: rotate(270deg); -webkit-transform-origin-x: 25px; -webkit-transform-origin-y: 0px; text-align: right; top: 335px; margin-left: -25px; ">
GIVE
<div class="index" style="position: absolute; z-index: 2; display: block; width: 50px; height: 50px; text-align: center; bottom: -25px; left: 20px; -webkit-transform: rotate(90deg); -webkit-transform-origin-x: 25px; -webkit-transform-origin-y: 0px; ">
1
</div>
</dt>
Looking at the codebehind it would appear they're relying on -webkit-transform: rotate(270deg);
And opening it in IE8 and examining with Developer Tools I see
z-index: 3; position: absolute; text-align: right; filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=3); PADDING-BOTTOM: 0px; padding-left: 10px; width: 330px; padding-right: 20px; display: block; height: 50px; margin-left: 0px; top: 0px; padding-top: 0px; left: 0px; rotation: 270deg; webkittransform: rotate(270deg); WebkitTransformOrigin: 25px 0px; moztransform: rotate(270deg); MozTransformOrigin: 25px 0px; otransform: rotate(270deg); OTransformOrigin: 25px 0px;
Where this jumps out at me: filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=3);