code: function (rotation, sintheta, costheta) {
  		// Adjust for alignment and rotation. Rotation of useHTML content is not yet implemented
  		// but it can probably be implemented for Firefox 3.5+ on user request. FF3.5+
  		// has support for CSS3 transform. The getBBox method also needs to be updated
  		// to compensate for the rotation, like it currently does for SVG.
  		// Test case: http://highcharts.com/tests/?file=text-rotation
  		css(this.element, {
  			filter: rotation ? ['progid:DXImageTransform.Microsoft.Matrix(M11=', costheta,
  				', M12=', -sintheta, ', M21=', sintheta, ', M22=', costheta,
  				', sizingMethod=\'auto expand\')'].join('') : NONE
  		});
  	}
docs: Set the rotation of a span with oldIE's filter