Updated May 3, 2026
Modal popups are essential UI components for alerts, login forms, image galleries, and confirmation dialogs. This collection shows multiple ways to build them with pure CSS — no JavaScript framework required.
Techniques include: the :target pseudo-class method (URL hash-based), checkbox hack (no URL change), and JavaScript-enhanced modals with smooth animations. Each example includes a semi-transparent overlay backdrop and centered modal content.
Accessibility note: For production use, consider adding keyboard trap support (Escape to close) and ARIA attributes. Several demos show how to integrate these enhancements with minimal JavaScript.
Pure CSS popup modal using the :target selector — no JavaScript at all. Multiple modal examples with different sizes and close button styles shown in one demo.
Technologies
Code By
Sahil
Created
2024-06-15
Checkbox hack modal: uses a hidden checkbox input and associated label to toggle modal visibility. No URL hash changes means browser back button stays clean.
Technologies
Code By
Senky
Created
2023-08-20
Simple CSS-only modal window with title bar, close button, and overlay. Focuses on the core CSS structure for creating accessible modal dialogs.
Technologies
Code By
Mlegakis
Created
2024-04-10
Modern CSS modal with overlay including smooth fade-in animations, transition effects, and responsive sizing for mobile and desktop viewports.
Technologies
Code By
Palash Basak
Created
2025-07-25
Minimalist CSS modal overlay with focus on clean design, proper z-index layering, and centered positioning. Great starting template for custom modals.
Technologies
Code By
Torthbandt
Created
2025-11-05
