How can I implement dark mode toggle functionality using Tailwind CSS?

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How can I implement dark mode toggle functionality using Tailwind CSS?

Asked on Dec 26, 2025

Answer

To implement a dark mode toggle with Tailwind CSS, you can use the "dark" variant to apply different styles based on a class on the root element. Here's a basic setup to demonstrate how you can toggle dark mode using Tailwind's dark mode utilities.

<!-- BEGIN COPY / PASTE -->
    <div id="app" class="min-h-screen bg-white dark:bg-gray-900 text-black dark:text-white">
      <button onclick="toggleDarkMode()" class="p-2 bg-gray-200 dark:bg-gray-800 rounded">
        Toggle Dark Mode
      </button>
      <p class="mt-4">This is a sample text.</p>
    </div>

    <script>
      function toggleDarkMode() {
        document.getElementById('app').classList.toggle('dark');
      }
    </script>
    <!-- END COPY / PASTE -->

Additional Comment:

The "dark" class is toggled on the root element to switch between light and dark mode.
Tailwind's dark mode utilities (e.g., "dark:bg-gray-900") apply styles when the "dark" class is present.
Ensure your Tailwind configuration is set to "class" mode for dark mode functionality.
Consider persisting the dark mode state using local storage for a better user experience.

✅ Answered with Tailwind CSS best practices.

Ask any question about Tailwind CSS here... and get an instant response.

How can I implement dark mode toggle functionality using Tailwind CSS?

Asked on Dec 26, 2025

Answer

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