Revert "updated development guide"

This reverts commit def2fb8543.

www/docs/src/theme/Tabs/index.js

@@ -12,8 +12,8 @@ export default function TabsWrapper(props) {
   }, [])
 
   return (
-    <div className={`tabs-wrapper ${props.wrapperClassName}`}>
+    <>
       <Tabs {...props} />
-    </div>
+    </>
   );
 }