Twitter's Bootstrap with themes, apps, and other enhancements
Tips, Resources and Patterns for Responsive Web Design
An article on the best practices to apply in order to minimize HTTP round-trip times
In few words, Given a html document, it pulls out the main body text and cleans it up. It also can clean up title based on latest readability.js code.
DOM Monster is a cross-platform, cross-browser bookmarklet that will analyze the DOM & other features of the page you're on, and give you its bill of health.
Build responsive, mobile-first projects on the web with the world's most popular front-end component library.
Bootstrap is an open source toolkit for developing with HTML, CSS, and JS. Quickly prototype your ideas or build your entire app with our Sass variables and mixins, responsive grid system, extensive prebuilt components, and powerful plugins built on jQuery.
The chromeless project is an experiment into making it possible to build a web browser using only web technologies, like HTML, JavaScript, and CSS.
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
This site provides a collection of schemas that webmasters can use to markup HTML pages in ways recognized by major search providers, and that can also be used for structured data interoperability (e.g. in JSON).
Email Blueprints is a collection of HTML email templates that can serve as a solid foundation and starting point for the design of emails.
This website and its sample code creates a template of sorts, absent of design or layout, that will help you avoid some of the major rendering problems with the most common email clients out there — Gmail, Outlook, Yahoo Mail, etc. While not plug and play (you know, you'll have to do some work ;-), it will provide some helpful examples and snippets that will keep your email design rendering as true-to-form as possible.
HTML Purifier is a standards-compliant HTML filter library written in PHP. HTML Purifier will not only remove all malicious code (better known as XSS) with a thoroughly audited, secure yet permissive whitelist, it will also make sure your documents are standards compliant, something only achievable with a comprehensive knowledge of W3C's specifications.
HTML2PDF is a HTML to PDF converter written in PHP.
It allows the conversion of valid HTML 4.01 in PDF format, and is distributed under OSL.
HTML Slides
A Simple Standards-Based Slide Show System
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 four levels of page navigation and additional utility links – and can easily be customized to meet your own individual needs, branding, or style preferences.
CKEditor is an open source WYSIWYG text editor designed to bring common word processor features directly to web pages, simplifying their content creation. Its core code is written in JavaScript.
Easily create beautiful, branded email marketing campaigns. Start by choosing one of our free HTML email templates and customize it in minutes.
The Email Standards Project is about working with email client developers and the design community to improve web standards support and accessibility in email. The project was formed out of frustration with the inconsistent rendering of HTML emails in major email clients.
MiniWeb models an entire web site in a single HTML page. All of the site files are stored in a JSON object which you can navigate with a UNIX-like shell or the system browser. It has a built-in templating system and has an approximate separation of client and server. It is in its infancy but is still kind of fun to play with.