article layout fix

pages/article/[slug].tsx

@@ -27,6 +27,9 @@ const Page: NextPage<Props> = props => {
         <App
             menu={buildMenu(props.pageUrl, menuModel)}
             showAuthor={true}
+            contentStyle={{
+                marginTop: 'var(--size-l)'
+            }}
         >
             <Head>
                 <title>{props.data.title}</title>