CSS

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.  

Simply-Buttons is a technique for creating nice looking buttons. You can easily modify the buttons look and feel by creating your own stylesheet.   Simply-Buttons - Features: Buttons size to fit text. There are 3 states: Inactive, Active, and Hover. They look and behave the same way in every browser and operating system. The do not need the javascript to work, they work with just the css  

RMSforms is a flexible CSS forms framework to help style those pesky forms. To apply it to your forms, simply download the RMSforms CSS Stylesheet, link to it from your HTML and apply the correct classes to the HTML structure and you will be on your way to creating complex CSS-based, tableless, flexible forms with ease.  

Styleneat organizes and standardizes your CSS - selectors, sub-selectors and properties - in a structure that makes it easier to define page areas and see how they relate to each other.  

Free CSS Templates collects Business, Corporate, Portal, Portfolio, GUI, Admin Templates and more available for free download.  

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.  

BlueTrip is a full featured and beautiful CSS framework which originally combined the best of Blueprint, Tripoli (hence the name), Hartija, 960.gs, and Elements, but has now found a life of its own. BlueTrip gives you a sensible set of styles and a common way to build a website so that you can skip past the grunt work and get right to designing.   BlueTrip - Features: 24-column grid Sensible typography styles Clean form styles A print stylesheet An empty starter stylesheet Sexy buttons

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.  

SlickMap CSS is a simple stylesheet for displaying finished site maps directly from HTML unordered list navigation. It’s suitable for most web sites – accommodating up to three levels of page navigation and additional utility links. It can easily be customized to meet your own individual needs, branding, or style preferences.   The general idea of SlickMap CSS is to streamline the web design process by automating the illustration of site maps while at the same time allowing for the pre-develop

ElastiCSS is a simple css framework to layout web-based interfaces, based on the printed layout techniques of 4 columns but with capabilities to unlimited column combinations. and capacity to make elastic, fixed and liquid layout easily.