shade.addClassName(CSS_SHADE_CLASS);
CSS.setZIndex(shade, CSS_SHADE_Z_INDEX);
WindowPanel window = getWindow(dropTarget);
CSS.setAbsoluteBounds(shade,
dropTarget.getAbsoluteLeft() - window.getAbsoluteLeft(),
dropTarget.getAbsoluteTop() - window.getAbsoluteTop(),
dropTarget.getOffsetWidth(), dropTarget.getOffsetHeight());
return shade;
}