Respect compiler css option in SSR

Don't produce css in server side render when css option is set to false.

src/compile/render-ssr/index.ts

@@ -105,12 +105,12 @@ export default function ssr(
 			.join(', ')};`,
 		component.javascript,
 		parent_bindings.join('\n'),
-		css.code && `$$result.css.add(#css);`,
+		options.css && css.code && `$$result.css.add(#css);`,
 		main
 	].filter(Boolean);
 
 	return (deindent`
-		${css.code && deindent`
+		${options.css && css.code && deindent`
 		const #css = {
 			code: ${css.code ? stringify(css.code) : `''`},
 			map: ${css.map ? stringify(css.map.toString()) : 'null'}