Collect, test, and experiment with interface pattern pairings of CSS & HTML. Pears is an open source WordPress theme, enabling people like you to get your own pattern library up and running quickly.

Least helps you move from your old-fashioned CSS files to something shiny: CSS pre-processors!

Compatibility tables for support of HTML5, CSS3, SVG and more in desktop and mobile browsers.

CSS edits and image changes apply live.

CoffeeScript, SASS, LESS and others just work.

Background images make pages look good, but also make them slower. Each background image is an extra HTTP request. There's a fix: combine background images into a CSS sprite. But creating sprites is hard, requiring arcane knowledge and lots of trial and error. SpriteMe removes the hassles with the click of a button.

Bootstrap is a toolkit from Twitter designed to kickstart development of webapps and sites.
It includes base CSS and HTML for typography, forms, buttons, tables, grids, navigation, and more.

Markdown.css is better default styling for your Markdown files. It's heavily inspired by the Space WordPress theme

Web type is exploding all over the web but CSS currently doesn't offer complete down-to-the-letter control. So we created a jQuery plugin to give you that control.

A beautiful little tool from Pixelmatrix Design that lets you code and test CSS in real time. (via davidkaneda)

Masonry is a layout plugin for jQuery. Think of it as the flip side of CSS floats. Whereas floating arranges elements horizontally then vertically, Masonry arranges elements vertically then horizontally according to a grid. The result minimizes vertical gaps between elements of varying height, just like a mason fitting stones in a wall.

This tool allows you to automate the process of generating CSS sprites. Simply give it a ZIP file containing 2 or more images (GIF, PNG or JPG) and it will generate a sprite image and the corresponding CSS rules to target and display each component image.

The author is publishing the book to this site as it's being written, and we're putting it here to get feedback from you. This book uses the Open Feedback Publishing System (OFPS), an O'Reilly experiment that tries to bridge the gap between private manuscripts and public blogs.

Gorgeous JavaScript effect. A must visit.

Slideshows in XHTML

Easy is a CSS/HTML/JavaScript framework started as a personal project and then grew into something more. The idea behind it is to reduce the amount of time spent on setting up the basic master HTML template by reusing the same coding techniques.

Create awesome looking and engaging buttons by using CSS animations to give them all that radioactive feel.

Yet another CSS framework, without typography, form styles, etc.

Một số kỹ thuật nhúng font trong trang web

Tập hợp những điều người thiết kế web nên & không nên làm

(Thêm) một slider widget viết bằng jQuery

Trang web mobile-friendly cho phép trả lời 3 câu hỏi Xem gì - Ở đâu - Tại sao một cách nhanh gọn

Biến checkbox thành toggle switch kiểu iPhone

Tra cứu các properties của CSS 2.1

Thay vì dùng Flash như các player khác.

Công cụ rất hữu ích cho việc thiết kế web