CSS Browser Selector + is a very small JavaScript which empowers CSS selectors. Selector + CSS Browser is good help to develop a cross-browser site without using Hacks.

With it you can develop responsive sites for browsers that do not support Media Queries module (CSS3) and without using hacks (not character validated by W3C).

The script adds classes that do a deep scan on the client browser, opening up a range of opportunities for customization, thus being able to extend these capabilities to even newer browsers.

Conditionizr is an intelligent jQuery plugin, that detects the end-users browser and pixel ratio, allowing you to serve specific conditional JavaScript and CSS files they need.

With legacy browsers, we often see Conditionial statements wrapped around our HTML element, so the browser can use the HTML tag relevant to the browser. Conditionizr steps in to take this conditional approach one step further, detecting those IE versions, and adds the relevant class-name to the HTML tag. This means no more conditional statements on the HTML tag.

Elusive Icons is a collection of 268 free vector icons focused for Twitter Bootstrap.

It’s actually a webfont that can be used with any of your projects. Bootstrap-based, Foundation-based or even your custom projects. It was created by the need for an Open-Source font that can be used in your projects without licencing issues and/or other “attribution” claws.

Photobox is a free CSS3 jQuery Image Gallery Plugin. It is beautiful and posses a great look & feel.

• Both the script & CSS are only 7k each (minified script, not gziped)
• Uses silky-smooth, hardware accelerated, CSS3 transitions and animations
• Pretty UI and easy UX
• Uses event-delegation on all thumbnails events

It works also on IE9 and above, but clearly not as nice as in normal browsers. Image can be zoomed in and out with mousewheel and navigated using mousemove to move around. The bottom row of thumbnails can be navigated by mouse movment. It supports keyboard keys for navigation and closing the gallery view.

Built using SASS and CSS3 media queries, Centurion is a responsive web framework that scales with your device. No longer do you need to worry about the screen size of an iPhone or an Android tablet since Centurion does the work for you.

Built-on CSS3 and HTML5 semantics to allow you to start capitalizing on a next generation standard. Centurion is scalable and it’s easy to learn syntax makes building a prototype simple.

We Live Icon Fonts is a free & open source icon fonts hosting service (like Google Web Fonts, but icon fonts only).

This is not a font generation service and you can’t generate Icon Fonts here. Just choose your favorite Icon Fonts and use them on your website. It’s really that simple!

Roots is a toolkit built on best practices for advanced front-end web development. Roots comes in the form of a static site build tool by default, but also includes templates and plugins for express.js and rails.

• Jade, stylus, and coffeescript default stack
• Super fast live reload implementation
• Coffeescript and markdown can be written directly in views
• Extremely robust, modular, and powerful css helper library built in
• Intelligently minifies html, css, and js on deploy

Mambo is a jQuery plugin that use canvas to draw 2D percenatge/colored badges. Mambo eliminates the need for creating images for rounded percentage loaders and round badges.

You can use percentage, static text or insert an image inside the badge, a real time saver!

jQRangeSlider is a powerful jQuery UI range selection slider that supports values and dates.

jQRangeSlider supports both numerical values and date/time and supports steps for both numerical and date values. Select values 5 by 5 or month by month, simply by changing an option.

jQRangeSlider is touch optimized, tested with iOS and Android. User can select a range simply by touching and swiping on his tablet or phone.

HTML_CodeSniffer is a client-side script that checks HTML source code and detects violations of a defined coding standard.

HTML_CodeSniffer is written entirely in JavaScript, does not require any server-side processing and can be extended by developers to enforce custom coding standards by creating your own “sniffs”.

It can be used in two ways. Called directly in JavaScript source, HTML_CodeSniffer will provide a list of known and potential violations to the calling script. It also comes with a pop-up auditor interface, accessible via a bookmarklet, letting you browse through messages emitted from one of the defined standards. Where possible, the auditor also points you to the HTML element causing the problem.

HTML_CodeSniffer comes with a set of 3 standards that enforce the Web Content Accessibility Guidelines (WCAG) 2.0.