CSS3

Sequence is a CSS animation framework for creating responsive sliders, presentations, banners, and other step-based applications. It provides the complete functionality for a website slider without forcing you to use a set theme. In fact, Sequence has no in-built theme, leaving you complete creative control to build a unique slider using only CSS3 -- no jQuery knowledge required!   Sequence - Features: Unique transition styles created using CSS3 Supports all modern browsers Gracefully degra

IE-CSS3 is a script to provide Internet Explorer support for some new styles available in the upcoming CSS3 standard.   IE-CSS3 rebuilds some of the elements with the script in Vector Markup Language (VML), an IE-specific vector drawing language. VML supports things that are missing from IE's CSS implementation like rounded corners and blur effects.  

CSS3 Playground is a client side web application for trying out different css styles. Use this web application to experiment and learn about new css3 capabilities. The styles applied when changing the different settings should follow the principles of progressive enhancements and will work in all browsers that support the setting. Just change the settings and see how the rectangular box changes according to your changes. Run the site in different browser to see what the differences are. This

Selectivizr is a JavaScript utility that emulates CSS3 pseudo-classes and attribute selectors in Internet Explorer 6-8. Simply include the script in your pages and selectivizr will do the rest.   Selectivizr - Features: Enhancing IE's selector engine Selectivizr adds support for 19 CSS3 pseudo-classes, 2 pseudo-elements and every attribute selector to older versions of IE. It can also fix a few of the browsers native selector implementations. JavaScript-knowledge: none Selectivizr works

eCSStender enables developers to patch CSS support in browsers and experiment with new features. It also enables designers to keep browser-specific hacks out of their CSS files. With eCSStender, you can take control of your CSS.  Extensions built with eCSStender greatly simplify the design process because you can author modern CSS using advanced selectors, properties such as border-radius, or custom font faces and rest assured that your design will work... even in IE6.  

LESS is a dynamic stylesheet language, it extends CSS with dynamic behavior such as variables, mixins, operations and functions. LESS runs on both the server-side (with Node.js and Rhino) or client-side (modern browsers only).   As an extension to CSS, LESS is not only backwards compatible with CSS, but the extra features it adds use existing CSS syntax. This makes learning LESS a breeze, and if in doubt, lets you fall back to CSS.  

Modernizr is a JavaScript library that detects HTML5 and CSS3 features in the user’s browser. This library makes it easy for you to write conditional JavaScript and CSS to handle each situation, whether a browser supports a feature or not. It’s perfect for doing progressive enhancement easily.  

Panzoom is a progressive plugin to create panning and zooming functionality for an element. Panzoom supports the same browsers as jQuery 2.0 and can be used with jQuery 1.9.0+ or jQuery 2.0+.   Rather than setting width and height on an image tag, Panzoom uses CSS transforms and matrix functions to take advantage of hardware/GPU acceleration in the browser, which means the element can be anything: an image, a video, an iframe, a canvas, text, WHATEVER. IE<=8 is not supported, but this plug

Mosaiqy is a jQuery plugin to organize and show image thumbnails and zoom, easy to integrate also with Flickr, Instagram, Panoramio and other.  Thumbnails are arranged in a grid and each row and column could be randomically moved, sliding in every direction and showing other thumbnails available. Image data is described as a regular JSON object.  And all expensive animations are taken over by your GPU on recent browsers using CSS3 transitions, minimizing the CPU overhead.     

sBubble is a jQuery tooltip plugin which is totally based on CSS3 for shapes and animations. There are no images used and no jQuery code used for animation. Plus some color themes are also provided.