View file application/libraries/Scaffold/mixins/css3/rotate.css

/**
 * Rotate an element 90, 180 or 270 degrees
 */
=rotate($angle)
{
	-webkit-transform: rotate(#[$angle]deg);
	-moz-transform: rotate(#[$angle]deg);
	filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=#[90 / $angle]);
}