Добавлены стили emotion

src/container/detail/index.tsx

@@ -1,7 +1,9 @@
 import React from 'react';
+import Heading from '../../components/heading';
+import { HeadingVariant } from '../../components/heading/types';
 
 const DetailPage = (): React.ReactElement => {
-  return <h1>Detail Page</h1>;
+  return <Heading variant={HeadingVariant.h2}>Detail Page</Heading>;
 };
 
 export default DetailPage;