Enterprise HTML: Proven High Performance, Enterprise-Level and Scalable HTML Tips and Best Practices
Lovely examples of don'ts
Web Directions South 2010 Opening Titles
RT @stop: Mind blown. Bar raised. @themaninblue's title sequence for WDS, using HTML, CSS, and JS: (view in Chrome)
Here’s what we’ve learned about doing UI for mobile web apps with WebKit - (37signals)
A couple of useful tips on fonts and form elements
Good Fucking Design Advice
Good laugh, great advice and resources
iPad Peek
iPad preview
Gridulator: Make pixel grids, lickety-split
Tell Gridulator your layout width and the number of columns you want, and it’ll spit back all the possible grids that have nice, round integers
ProCSSor - Advanced CSS Prettifier
CSS beautifier
10 tips for designing mobile websites | These Days Labs
Supersize that Background, Please!
Good use of background cover property and @media queries
CSS selection styles
::selection
Blog | Graphicpeel — iOS Icons Made in Pure CSS
Amazing
Optimiser son application web pour iPhone ou iPod Touch
Good summary of principal tips to start off with
HTML5Rocks - Best Practices for a Faster Web App with HTML5
Google's tips and playground
Announcing an HTML5 mobile app framework for touch devices
check this out
Image Cross Fade Transition with jQuery
Fade one image into another @rem
Webkit CSS Properties
Safari for Desktop and iPhone properties listed in a table. A must have.
gridr buildrrr
Grid builder
CSS Border Radius
Try out border radius and copy/paste css
12 Useful and Free Downloadable Web Design Books
Handy references by Speckyboy Design Magazine
CSS3 Please! The Cross-Browser CSS3 Rule Generator
You can edit the underlined values in this css file but don't worry about making sure the corresponding values match, that's all done automagically for you.
Install multiple versions of IE on your PC | TredoSoft
For use on Windows
LESS - Leaner CSS
LESS extends CSS with variables, mixins, operations and nested rules
24 ways: Working With RGBA Colour
zen-coding
Set of plugins for HTML and CSS hi-speed coding
Transforms
FindMyByIP
What's my IP address and how modern is my browser
Bulletproof @font-face syntax
Paul Irish's take on bullet proofing your @font-face definitions as IE needs an .eot font and the others browsers require .ttf or .otf
XHTML & CSS Lightbox
Look mom, no Javascript
Universal Internet Explorer 6 CSS | For A Beautiful Web
Safari Web Content Guide
Handy reference for developing Web apps that run on Mobile Safari