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How to make a closable menu in Astro build

In this example, we have a menu that is initially hidden with the .hidden class. When the user clicks on the “Menu” button, the toggleMenu function is called, which toggles the .hidden class on the menu to show or hide it. The menu also has a “Close” button that calls the same function when clicked.

The rest of the code is just a basic layout with a header and main content area, and some styles to make everything look nice.

Astro
---
name: layout
---
<astro>
  <script>
    export function toggleMenu() {
      const menu = document.querySelector(".menu");
      menu.classList.toggle("hidden");
    }
  </script>
  
  <nav class="menu hidden">
    <ul>
      <li><a href="#">Home</a></li>
      <li><a href="#">About Us</a></li>
      <li><a href="#">Contact Us</a></li>
    </ul>
    <button class="close" on:click={toggleMenu}>Close</button>
  </nav>
  
  <div class="wrapper">
    <header>
      <h1>My Website</h1>
      <button class="menu-button" on:click={toggleMenu}>Menu</button>
    </header>
    <main>
      <!-- Page content goes here -->
    </main>
  </div>
</astro>

<style>
  .hidden {
    display: none;
  }
  
  .wrapper {
    max-width: 800px;
    margin: 0 auto;
  }
  
  nav ul {
    list-style: none;
    padding: 0;
  }
  
  nav li {
    margin-bottom: 1rem;
  }
  
  .menu-button {
    display: block;
    margin-left: auto;
  }
</style>
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