src/vs/workbench/contrib/markers/browser/markersView.ts/MarkersView/createMessageBox
class MarkersView:	private createMessageBox(parent: HTMLElement): void {
		this.messageBoxContainer = dom.append(parent, dom.$('.message-box-container'));
		this.messageBoxContainer.setAttribute('aria-labelledby', 'markers-panel-arialabel');
	}