rotate.less

.rotate(@val) {
	-moz-transform: rotate(@val);  /* FF3.5+ */
	-o-transform: rotate(@val);  /* Opera 10.5 */
	-webkit-transform: rotate(@val);  /* Saf3.1+, Chrome */
	-ms-transform: rotate(@val);  /* IE9 */
	transform: rotate(@val);
	
	/* IE6-IE8 */
	@radians: ~`parseInt("@{val}") * Math.PI * 2 / 360`;
	@costheta: ~`Math.cos("@{radians}")`;
	@sintheta: ~`Math.sin("@{radians}")`;
	@negsintheta: ~`"@{sintheta}" * -1`;
	filter: ~"progid:DXImageTransform.Microsoft.Matrix(sizingMethod='auto expand', M11=@{costheta}, M12=@{negsintheta}, M21=@{sintheta}, M22=@{costheta})";
	zoom: 1;
}