index.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Navigate with URL</title>
    <link rel="stylesheet" href="css/styles.css" />
  </head>
  <body>
    <nav>
      <ul>
        <li><a href="#home" id="home-navlink" class="navlink">HOME</a></li>
        <li><a href="#about" id="about-navlink" class="navlink">ABOUT</a></li>
        <li>
          <a href="#products" id="products-navlink" class="navlink">PRODUCTS</a>
        </li>
        <li>
          <a href="#contact" id="contact-navlink" class="navlink">CONTACT</a>
        </li>
      </ul>
    </nav>
    <div id="app"></div>
  </body>
  <script src="lib/jquery-3.6.0.min.js"></script>
  <script src="app/app.js" type="module"></script>
</html>