Element slotElement = slot.getElement();
slotElement.removeAttribute("aria-hidden");
Style slotStyle = slotElement.getStyle();
slotStyle.clearVisibility();
slotStyle.clearMarginLeft();
slotStyle.clearMarginTop();
if (slot.getExpandRatio() != 0) {
// FIXME expandRatio might be <0
double size = 100 * (slot.getExpandRatio() / total);