src/vs/workbench/contrib/notebook/browser/view/renderers/cellRenderer.ts/AbstractCellRenderer/commonRenderElement
class AbstractCellRenderer:	protected commonRenderElement(element: ICellViewModel, templateData: BaseCellRenderTemplate): void {
		if (element.dragging) {
			templateData.container.classList.add(DRAGGING_CLASS);
		} else {
			templateData.container.classList.remove(DRAGGING_CLASS);
		}
	}