108 CSS Forms

A bold, responsive input field that pops out upon activation; valid email entry triggers a bright green arrow button sliding in, which playfully animates on hover.

An interactive login form that performs a 360-degree 3D flip animation to seamlessly transition between vibrant, gradient-based color themes triggered by a JavaScript state manager.

A modern checkout form component utilizing the powerful CSS :has() selector to style parent containers based on the state of nested radio inputs.

A dual-panel form where JS acts as a simple state trigger, using classList.toggle to apply .animate classes. The entire complex transition is driven by CSS @keyframes, which choreograph separate transform and z-index animations for content and a background image.

Leverage the native HTML validation attributes like minlength in conjunction with the :has() selector to deliver real-time, high-performance visual feedback on form errors directly on the container, achieving robust and modern pure CSS validation.

A pure CSS demo showcasing a striking neubrutalist/retro UI style, achieved using prominent box-shadow for the paper-cut 3D effect and CSS variables to manage a bold, three-color palette.

This demo’s lively backdrop is created by injecting animated creatures into the form’s ::before and ::after pseudo-elements using Base64 data:image URLs. This visual flair is complemented by polished, pure CSS micro-interactions - the email input elegantly expands its width on :focus, while the submit button provides a tactile 3D press effect by manipulating box-shadow and transform: translateY().

This payment UI is a showcase of clean SCSS architecture, utilizing variables and a custom @mixin for maintainability. A key feature is its clever, JS-free state management for card selection, where input[type="button"] elements are toggled using the :focus pseudo-class to remove a grayscale() filter. The component’s cohesive design is further enhanced by custom-styled native <select> elements, achieved by stripping default browser styles with appearance: none;.

This payment UI demonstrates a classic front-end architecture, using CSS Flexbox to create a responsive two-column layout that gracefully stacks on smaller screens. All interactive functionality, including the custom card selection dropdown, is orchestrated by a concise vanilla JavaScript module that toggles a simple .visible class for state changes.

This JS-free form component achieves a distinct “neo-brutalist” aesthetic by pairing a solid border with a hard, offset box-shadow, creating a tactile, pseudo-3D effect. This visual system is applied to a modern Flexbox layout and is enhanced by polished micro-interactions, including a unique box-shadow outline on :hover and a clear background change on :focus for a cohesive user experience.

This demo blends a modern, adaptive layout powered by CSS Grid with a striking visual style. The fluid grid structure is populated by chunky form elements, whose pseudo-3D depth is crafted by pairing a thick border with a solid-color box-shadow, demonstrating a complete UI solution in pure CSS.

This is a lightweight, JS-free contact form that relies on modern CSS for layout and HTML5 for native validation. The code is written in Pug and SCSS, demonstrating a clean, preprocessor-based workflow for building robust and maintainable UI components.

This is a complete UI component blending aesthetic animation with functional form design. Staggered CSS keyframe animations bring the inline SVG to life, while the form itself features modern styling techniques, including a performant gradient-transition button and absolutely positioned Feather icons.

This demo showcases a pseudo-3D cube effect for form elements, architected in pure CSS using nested divs and transform: skew() to create a lightweight isometric perspective. The key micro-interaction is a satisfying “wipe” animation - triggered on :focus via the general sibling combinator - which transitions the top property of an inner element to reveal a vibrant gradient fill.