易用性检查

• Accessibility Valet Demonstrator
• Bobby Online Service
• Cynthia Says
• OCAWA Web Accessibility Expert
• Torquemada
  使用工具对页面进行一个完整的易用性分析方法测试，以快速辨别页面中哪些部分存在错误。
• UI Site check
  一个站点检查工具，只需要输入你的网址，便可以列出几十个验证器和易用性工具。
• WAVE 3.5 Accessibility Tool
  可以提供你页面上的易用性细节和错误方面的有用信息。他会用红黄绿蓝等几种图标来表示需要改进的页面部分。这些图标代表了你页面上有关结构、内容、可用性和易用性方面的问题细节。你可以清楚地看到当前页面上哪些位置存在问题。
• Web-based Site Usability Checker
• WebXACT Quality & Accessibility Check
  一个免费的在线服务，让你对单个页面进行质量、易用性和保密性问题的测试。
• Will the browser apply the rule(s)?
• TAW - Test accessibilidad web

整理和优化

• CSS Formatter and Optimiser
  能让你选择你的CSS更易读还是更小。
• CSS Compressor
  使用这个工具可以压缩你的CSS使之提高载入速度和节约带宽。
• Online CSS Compressor
  多种途径来清理并压缩你的CSS，牺牲了可读性来获得相当程度的优化和尺寸的减少。
• CSS Compressor
• CSS Syntax Checker for BBEdit and TextWrangler
• CSSTidy
  CSSTidy 是一个开源的CSS解释器和优化工具
• CSS Tweak ~ Web Based CSS Tweaker!
  CSS Tweak 会优化你的CSS以减少文件大小和下载时间。
• Clean CSS - Optmize and Format your CSS
• Format CSS Online
  自动格式化你的CSS使之便于阅读和编辑
• Online CSS Optimizer
  CSS Optimizer 优化并减少CSS的文件尺寸
• Online CSS Optimiser/Optimizer
  这个工具用于优化CSS代码。
• Tabifier
  使HTML和CSS代码变漂亮。
• Webucator
  有一个CSS参考手册，你还可以在上面测试你的CSS代码
• CSS Centricle
  CSS hack浏览器兼容一览表 （就是w3cn.org 上的那个）

字体

• CSS Font and Text Style Wizard
  你可以在这里测试用不同的字体和样式来生成CSS源代码。
• Em Calculator
  转换字体大小到em的工具
• text sizing - up the garden path
  不同浏览器下字体表现的研究，共有264个截图。

表单

• Accessible Form Builder
  轻轻松松生成符合XHTML标准的表单。
• CSS Form Code Maker
  表单生成器
• JotForm
  所见即所得的表单生成器
• korhoen typeviewer
  帮你查看CSS的排版效果，帮你调整使之易读。

布局

• CssCreator -> Page Layout:
  this generator will create a CSS layout that has fixed width left and/or right columns with a dynamic width center column, all the same height with header and footer.
• CSS HTML PHP Website Template Maker
  一个PHP - HTML - CSS模板生成器，可以生成包括页头和页尾的两栏布局的模板。
• Firdamatic
  Firdamatic? 是一个无表格的布局生成器。
• Free CSS Template Code Generator
  生成三栏的布局
• Layout-o-Matic
  也是一个无表格的布局生成器。
• QrONE CSS Designer
  在线CSS生成器
• Scriptomizers
  一个CSS样式生成器
• The Generator Form v2.90
  1-3栏可定制的CSS页面生成器。

酷站

• CSSElite
• openwebdesign.org
  设计师和站长在这里分享网页设计模板和资讯。
• CSS thesis
• Wow-Factor
• Web Standards Awards
• W3 Compliant Sites
• Unmatched Style
• The Weekly Standards
• CSS-Mania
• CSS Drive
• CSS Import
• CSS Zen Garden
• CSS Vault
• CSS Beauty
• Stylegala

帮助向导 / Hacks / 学习资源

• SelectOracle
  Explains the structure of CSS- and HTML-documents. Enter semi-colon separated selectors or just paste in your existing rulesets into the “Direct Input area, or provide the URL of a stylesheet or an HTML document with an embedded stylesheet in the “URL Input area. English, Spanish, German and Bulgarian versions are available.
• Tom Lee has a tutorial on Max-width in IE Using a CSS Expression. Word of caution: I hear using this method can be rather hairy, in some cases crashing the browser.
• Future-proof your CSS with Conditional Comments from Bruce Lawson is a great comprehensive collection of CSS’s that, when combined, addresses most of CSS issues with different browsers.
• IE Word Wrap Doppelganger Bug
  这个站点展示了标题(heading)元素在IE6中换行时会留个小尾巴的bug。
• Images, Tables, and Mysterious Gaps seems like something I should’ve known already about the behavior of inline elements in strict mode. But of course it took me an hour of agony before finally realizing the ultimate truth: I’m not that smart.
• Easy CSS hacks for IE7 — IE7下可以用的CSS Hacks。
• 针对IE7, Firefox 1.5和Opera 8.5的Web浏览器CSS支持 一览表。
• snook.ca on the “+ CSS hack which you can use to target IE6 and IE7 only.
• On having layout
  提供了很多信息围绕IE其特有的“渲染概念：hasLayout — one of the major causes for headache when it comes to how IE decides to pain the boundaries of certain HTML elements: 

   

  • “Internet Explorer 中有很多奇怪的渲染问题可以通过赋予其“layout得到解决。John Gallant 和 Holly Bergevin 把这些问题归类为“尺寸bug(dimensional bugs)，意思是这些 bug 可以通过赋予相应元素某个宽度或高度解决。这便引出关于“layout的一个问题：为什么它会改变元素的渲染特性，为什么它会影响到元素之间的关系？这个问题问得很好，但却很难回答。在这篇文章中，我们专注于这个复杂问题会有那些方面的表现，某一方面的具体讨论和范例请参考文中给出的相关链接。

  这篇文章的中文翻译参见承志的SharkUI：On having layout

• Negative text-indent and underline — No matter how far on the left the real text is, the underline will be stretched all the way to the right in some PC browsers, namely the Firefox.
• IE6 Multi Class Bug — Again, something that could’ve brought to my attention last week!
  • …Internet Explorer fails to render backgrounds for elements that have both an ID and a class defined. For instance, #photos.background1 will display the corresponding background in IE6 for Windows, but once that has been defined, #photos.background2, #photos.background3, etc. will not be displayed.
• Ten more CSS tricks you may not know
  包括少量的IE bug修复手段
• The “Holly Hack — 著名的taming IE/Win CSS display bug by assigning a dimensional value such as height:1%;
• CSS tests
  很不错的一系列CSS测试页面
• max-width in IE
  用IE的expression来模拟max-width
• http://imfo.ru/csstest/css_hacks/import.php
  用@import来针对不同的浏览器隐藏CSS的一系列方法。
• Essentials of CSS Hacking For Internet Explorer
  助你对付IE的一系列建议。
• Web 浏览器标准支持
  用图表来比较IE 6, Firefox 1.0, 和Opera 8.
• The perils of using XHTML properly
  正确使用XML申明和MIME类型。
• IE Double Float Margin Bug.

小贴士

• CSS-Based Forms: Modern Solutions样式表定义的各种漂亮注册与登录表单的收集。
• Hot Dates with CSS 教你怎样使blog的日期看起来像日历页。
• A nice demo of experimenting with CSS-only solution to imagemap with popups using unordered list.
• Clagnut shows you how to have Line breaks in tooltips by using the carriage return entity . How utterly simple!
• Styling check boxes and radio buttons only with CSS uses 100% CSS solution (via attribute value selector and positioned background images) to serve up customized form elements. It’s semantically correct and degrades well for browsers that doesn’t support this method (IE), but is it also accessible?
• Stuart Robertson’s CSS text shadow technique seems like one of the easiest-to-implement techniques I’ve come across. It uses :before pseudo element and supports both Safari and Firefox browsers.
• From “holy crap why didn’t I think of that file… Airbag has a simple but great idea of using a ruler background images in CSS to check DIV sizing during development.
• CSS Colors: Take Control Using PHP is a wonderful tutorial from Barely Fitz on how to use PHP variables to represent colors in your CSS which you can then manipulate — quickly changing all the colors from a single source, generating new colors via algorythm, etc.
• Web Graphics has a CSS3 demo on using :target pseudo class to style anchor link targets.
• Dynamic Drive, a long time favorite DHTML code snippet depot of mine, has started a new spin-off: CSS Drive.
• A More Accessible Map — a new tutorial on ALA shows how to create an accessible map with tooltips via CSS and JS.
• Styling horizontal rules with CSS — “…Don’t waste hours trying to style horizontal rules consistently across different browsers. Instead wrap your HR in a DIV, set the HR to display none and style the surrounding DIV instead.. Now why the heck didn’t I think of that?
• CSS image preloader technique from maratz.com — using background image CSS property on images to serve as image place holders.
• stefanhayden.com shows a neat (and easy) way to make sure the client fetches new CSS with HTML update: just add a variable at the end of the CSS with each update.
• Wrapping text around curves via CSS if you don’t mind the markup cruft.
• codylindley.com’s Pushpin Header Technique “…is a CSS solution for creating a stationary header out of the thead of a table while the table’s tbody remains scrollable
• hovebox image gallery via sonspring. It’s sort of like mini-lightbox that enlarges the thumbnails on hover. Very nice.
• Beautifully Numbered Lists looks nice except that it’s not really an ordered list. Instead it used definition lists inside the ordered list for presentation — which means true standardistas might object.
• In what could only be catagorized under Uber-Anal department, ollicle.com how to alter CSS line-height based on paragraph width via javascript for optimal readbility.
• From “I didn’t know that file… wg tells us that using − instead of a dash character prevents some browser from wrapping the words connected by it.
• Eric Meyer, the man with CSS skillz that payz da billz, reveals something I’ve never heard of before: line-height property can use unitless values! The differences between united vs. unitless declarations are well described in his article but I can’t believe that I had it all wrong. I’ve been telling everyone that “You must declare unit for ANY measurement values unless it’s zero.
• loudandlonely has an interesting article on how to obscure your email address via CSS by using some clever a:link:before and a:link:after pseudo-elements.
• digital-web has a good run down on things to consider when using CSS typography.
• 456bereastreet takes a first crack at explaining CSS3 selectors
• Another good footer at the bottom using only CSS demo.
• Pup’s Box Flow Hack shows you how to allow even block items to flow around floating boxes.
• Simple(r) CSS Image Switcher — Unlike the orginal CSS image switcher, this version doesn’t use nested unordered lists. Instead, it uses just one unordered list, with the link image placed inside the anchor.
• Another very nice tutorial from 24ways. This time it’s Curly Quotes Without Images, a technique popular in citing blockquotes with enlarged quotation marks in the beginning and at the end of the quote. But without using background images.
• FACE is an interesting javascript-powered / CSS-controlled page animation technique.
• Defining CSS constants using PHP is a good article on using PHP to allow constants (’variables’) in CSS. For instance you can use this technique to define a repetitive color in CSS as a variable. That way you only need to declare it once and only change that one instance should you want to change that color. Very handy.
• 24ways has a good article on using z-index attribute.
• apples-to-oranges.com has a fantastic tutorial on how to create great looking bar graphs with CSS
• Image map for detailed information showcases use of CSS to provide an image with mouse-over-section for detailed notes.
• From the “How the heck did I miss this department: cssQuery a powerful cross-browser JavaScript function that enables querying of a DOM document using CSS selectors. All CSS1 and CSS2 selectors are allowed plus quite a few CSS3 selectors.
• Bulletproof logos via simplebits
• Css Color Chart
• Check marking visited links
• CSS Gradients Demo — creating gradient background effect in CSS using server-side constants technique developed bu Shaun Inman.
• Creating s star rating using CSS
  • CSS Star Rating Part Deux is a follow-up to the aforementioned technique that adds the starting “state.
  • And here’s an external article which wraps it all up with a tutorial on how to use CSS star rating with PHP and database.
• Image Placement Technique — Yes. Not “replacement but “placement.
• FooterStick — how to force the footer of a webpage to stick to the bottom of the viewport.
• Shaun Inman’s CSS-SSV — using PHP variables in CSS.
• CSS scroll box fade using alpha-channel PNG
• Styling visited links with :after pseudo class
• Footnotes with CSS and JS
• Restaurant menu layout in CSS via web-graphics.com
• CSS scale image — using em values to scale the images in CSS. via bigbaer.com
• Slantastic — create irregular shaped boxes.
• yDSF - Robust CSS Drop Shadows
• CSS sliding photo gallery — an interesting way to present equal-sized images on mouse hover
• alsacreations.com — Nice collection of CSS tutorials that covers most of the basics.
• Using CSS selectors to apply Javascript functionality — 'click here to delete’ demo
• Flickr-style image map with only CSS
• Web Color Schemes — via returnofdesign.com
• Making the jump to tableless design — Andy Budd’s presentation at @media 2005.
• CSS Help Pile
• Simple Clearing of Floats — various methods of clearing floats.
• Visited links styling — via webdesign.maratz.com.
• mandarindesign’s text tricks.
• Sweet collection of CSS how-tos — via maratz.com
• HoverHelp — DHTML/CSS tool tips on hover.
• How-to: Giving To Hiram? masthead — Nice masthead design in CSS. via cameronmoll.com
• :focus and :not
  9rules.com讨论了两个很少见的CSS伪类。
• welstyled.com — CSS文章和小贴士包括min-height hack, “the underscore hack, “single line vertical centering, “photocards等等
• Couloir Slideshow Script — 错！这不是flash。这是纯javascript/CSS编写的产品。
• WASP list some international sites that are inspired by CSS Zen Garden Project
• 用CSS的border属性来创建斜边