diff --git a/src/App.js b/src/App.js
index 1ab2df6..2f8ffc6 100644
--- a/src/App.js
+++ b/src/App.js
@@ -10,6 +10,7 @@ import Loading from "./components/Loading";
 function App(props) {
   return (
     <div className="App">
+      {/* display loading */}
       {props.isLoading && <Loading />}
       <Header />
       <div className="container pt-3">
diff --git a/src/components/Header.js b/src/components/Header.js
index bad215e..3aaae96 100644
--- a/src/components/Header.js
+++ b/src/components/Header.js
@@ -1,5 +1,5 @@
 import React, { useState } from "react";
-import { Navbar, Nav, Button } from "react-bootstrap";
+import { Navbar, Button } from "react-bootstrap";
 
 import Logo from "../assets/images/logo.svg";
 import { MenuIcon } from "../assets/icons/icons";