src/vs/editor/browser/viewParts/currentLineHighlight/currentLineHighlight.ts/CurrentLineHighlightOverlay/_renderOne
class CurrentLineHighlightOverlay:	protected _renderOne(ctx: RenderingContext): string {
		const className = 'current-line' + (this._shouldRenderOther() ? ' current-line-both' : '');
		return `<div class="${className}" style="width:${Math.max(ctx.scrollWidth, this._contentWidth)}px; height:${this._lineHeight}px;"></div>`;
	}