src/vs/workbench/contrib/notebook/browser/view/renderers/backLayerWebView.ts/BackLayerWebView/_generateStyles
class BackLayerWebView:	private _generateStyles() {
		return {
			'notebook-output-left-margin': `${this.options.leftMargin + this.options.runGutter}px`,
			'notebook-output-width': `calc(100% - ${this.options.leftMargin + this.options.rightMargin + this.options.runGutter}px)`,
			'notebook-output-node-padding': `${this.options.outputNodePadding}px`,
			'notebook-run-gutter': `${this.options.runGutter}px`,
			'notebook-preview-node-padding': `${this.options.previewNodePadding}px`,
			'notebook-markdown-left-margin': `${this.options.markdownLeftMargin}px`,
			'notebook-output-node-left-padding': `${this.options.outputNodeLeftPadding}px`,
			'notebook-markdown-min-height': `${this.options.previewNodePadding * 2}px`,
			'notebook-markup-font-size': typeof this.options.markupFontSize === 'number' && this.options.markupFontSize > 0 ? `${this.options.markupFontSize}px` : `calc(${this.options.fontSize}px * 1.2)`,
			'notebook-cell-output-font-size': `${this.options.fontSize}px`,
			'notebook-cell-output-font-family': this.options.fontFamily,
			'notebook-cell-markup-empty-content': nls.localize('notebook.emptyMarkdownPlaceholder', "Empty markdown cell, double click or press enter to edit."),
			'notebook-cell-renderer-not-found-error': nls.localize({
				key: 'notebook.error.rendererNotFound',
				comment: ['$0 is a placeholder for the mime type']
			}, "No renderer found for '$0' a"),
		};
	}