function renderContent(group, content) {
	            // For tooltip.
	            content.dataIndex = thisNode.dataIndex;
	            content.seriesIndex = seriesModel.seriesIndex;

	            var contentWidth = Math.max(thisWidth - 2 * borderWidth, 0);
	            var contentHeight = Math.max(thisHeight - 2 * borderWidth, 0);

	            content.culling = true;
	            content.setShape({
	                x: borderWidth,
	                y: borderWidth,
	                width: contentWidth,
	                height: contentHeight
	            });

	            var visualColor = thisNode.getVisual('color', true);
	            updateStyle(content, function () {
	                var normalStyle = {fill: visualColor};
	                var emphasisStyle = itemStyleEmphasisModel.getItemStyle();

	                prepareText(normalStyle, emphasisStyle, visualColor, contentWidth, contentHeight);

	                content.setStyle(normalStyle);
	                graphic.setHoverStyle(content, emphasisStyle);
	            });

	            group.add(content);
	        }
@private
@type {module:zrender/container/Group}