src/vs/workbench/contrib/notebook/browser/view/notebookCellList.ts/NotebookCellList/_revealOffset
class NotebookCellList:	private _revealOffset(viewIndex: number, offset: number) {
		const element = this.view.element(viewIndex);
		const elementTop = this.view.elementTop(viewIndex);
		if (element instanceof MarkupCellViewModel) {
			return this._revealInCenterIfOutsideViewport(viewIndex);
		} else {
			const rangeOffset = element.layoutInfo.outputContainerOffset + offset;
			this.view.setScrollTop(elementTop - this.view.renderHeight / 2);
			this.view.setScrollTop(elementTop + rangeOffset - this.view.renderHeight / 2);
		}
	}