How do I implement dark mode toggle with Tailwind CSS?

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How do I implement dark mode toggle with Tailwind CSS?

Asked on Dec 22, 2025

Answer

To implement a dark mode toggle with Tailwind CSS, you can use the `dark` variant to apply styles conditionally based on a dark mode class. This approach typically involves toggling a class on the root element (like `html` or `body`) to switch between light and dark themes.

<!-- BEGIN COPY / PASTE -->
    <html lang="en">
      <body class="bg-white text-black dark:bg-gray-900 dark:text-white">
        <button onclick="document.documentElement.classList.toggle('dark')">
          Toggle Dark Mode
        </button>
        <div class="p-4">
          <h1 class="text-2xl">Hello, World!</h1>
          <p>This is a paragraph.</p>
        </div>
      </body>
    </html>
    <!-- END COPY / PASTE -->

Additional Comment:

Tailwind's `dark` variant allows you to define styles that apply when a `dark` class is present on a parent element.
In the example, clicking the button toggles the `dark` class on the `` element, switching the theme.
Ensure your Tailwind configuration includes the `darkMode` option set to `'class'` to enable this feature.
This approach is simple and leverages Tailwind's built-in utilities without additional JavaScript libraries.

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

How do I implement dark mode toggle with Tailwind CSS?

Asked on Dec 22, 2025

Answer

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