Photoshop-like CSS gradient editor

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CSS3 transition property & without JS.

Just-add-water CSS animations

Break free from CSS vendor prefix hell!
-prefix-free lets you use only unprefixed CSS properties everywhere. It works behind the scenes, adding the current browser’s prefix to any CSS code, only when it’s needed.

Simple animations using some CSS3 I found on the web. Best used on glyphicons like FontAwesome.

jQuery.Keyframes generates and runs CSS3 keyframes quickly and easily allowing you to concentrate on the content of your project whilst cutting down code.

A collection of CSS3 powered hover effects to be applied to call to actions, buttons, logos, featured images and so on. Easily apply to your own elements, modify or just use for inspiration. Available in CSS and SASS.

A jQuery tabs module for todays web!

A Responsive jQuery Gallery Plugin with CSS3 Animations

A CSS button library built with Sass & Compass

Magic is a CSS3 framework with many animations. Is simple to use and many animations are cross-browser compatible.

Random & Responsive HTML 5, CSS3 Gallery with LazyLoad

spiffy
HTML5 site
templates

Gallerie / Slider sans javascript. CSS 3 pur.

Makes typing in input fields fun with CSS3 effects

Générateur de boutons, icones, formulaires, rubans en CSS3.

Convert Photoshop shapes to CSS3

It's a presentation framework based on the power of CSS3 transforms and transitions in modern browsers and inspired by the idea behind prezi.com. — Read more

animate.css is a bunch of cool, fun, and cross-browser animations for you to use in your projects. Great for emphasis, home pages, sliders, and general just-add-water-awesomeness.