Updated May 3, 2026
Dark mode has become a standard feature for modern websites. This collection demonstrates multiple approaches to implement light/dark theme switching using CSS custom properties (variables), toggles, and the prefers-color-scheme media query.
Methods shown include: pure CSS checkbox toggle with sibling selectors, CSS :has() selector technique, JavaScript class toggling for maximum control, and system preference detection via prefers-color-scheme.
Key CSS features: Custom properties for theme colors, the light-dark() function, color-mix() for dynamic color blending, and smooth transitions between themes for a polished user experience.
Pure CSS dark mode toggle with sun/moon icons built entirely with CSS. Uses checkbox hack and CSS custom properties for seamless theme switching.
Technologies
Code By
Justin Schroeder
Created
2025-08-10
CSS-only dark mode switcher that toggles between light and dark themes using the adjacent sibling combinator and :checked pseudo-class.
Technologies
Code By
Ash West
Created
2025-09-15
Simple and clean dark mode toggle with slider UI. Includes smooth color transitions and CSS custom properties organized by theme for easy maintenance.
Technologies
Code By
CodeKiwi
Created
2025-10-20
Light/dark mode toggle built with pure CSS — no JavaScript. Features animated toggle switch and complete dark/light color scheme using CSS variables.
Technologies
Code By
Bheberer
Created
2025-07-05
Light/dark theme toggle using CSS and minimal JavaScript. Stores user preference in localStorage for persistence across page loads and sessions.
Technologies
Code By
Umer Farooq
Created
2025-11-10
