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How can I implement dark mode toggle functionality with Tailwind CSS?
Asked on Feb 06, 2026
Answer
To implement dark mode toggle functionality with Tailwind CSS, you can use the "dark" variant in Tailwind to apply different styles based on a dark mode class. This requires toggling a class on the root element, typically the HTML or body tag.
<!-- BEGIN COPY / PASTE -->
<html lang="en" class="dark">
<head>
<link href="https://cdn.jsdelivr.net/npm/tailwindcss@2.2.19/dist/tailwind.min.css" rel="stylesheet">
</head>
<body class="bg-white dark:bg-gray-800 text-black dark:text-white">
<div class="p-4">
<h1 class="text-2xl font-bold">Dark Mode Example</h1>
<button onclick="toggleDarkMode()" class="mt-4 px-4 py-2 bg-blue-500 text-white rounded">Toggle Dark Mode</button>
</div>
<script>
function toggleDarkMode() {
document.documentElement.classList.toggle('dark');
}
</script>
</body>
</html>
<!-- END COPY / PASTE -->Additional Comment:
- The "dark" class on the element is used to apply dark mode styles.
- Tailwind's "dark" variant allows you to define styles for dark mode using "dark:" prefix.
- The example toggles the "dark" class using JavaScript to switch between modes.
- Ensure Tailwind CSS is properly included in your project for the classes to work.
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