HTML5 & CSS3 Ready
The website shows the support of browsers to HTML5 and CSS3 from 08 to 10, in the form of fan charts. The momentum of development is still considerable.
HTML5 Safety Handbook
CSS3 button Builder
What you see is what you generate the CSS3 button, you just need to create a satisfying CSS3 button with a basic mouse click and click on the generated button to see the CSS3 code.
When can I use ... (HTML5 & CSS3 browser compatibility)
Very detailed list of browser compatibility for HTML5, CSS3, SVG and other technologies.
CSS3 Color value/name Quick check manual
CSS3 color value query manual, including color English name, 16 binary value, RGB percent, RGB integer value, color abbreviation and color effect etc...
CSS3 Generator
On-line testing CSS3 new features to generate instant results.
Modernizr
current browser-to-HTML5 support scenario test
This tool can help you to test your current browser compatibility with HTML5, very detailed, very useful!
CSS Border radius (code generator)
You can generate a CSS border code generator for the CSS3 code by entering a value. Very easy to use.
Findmebyip (HTML5 & CSS3 Browser compatibility manual)
Very detailed HTML5 and CSS3 browser compatibility manuals.
CSS3 Gradient Generator
CSS3 Watch
Front-end development tools & Resources Small Collection
CSS3, please! (Real-time experience with CSS3 code)
Font Dragr
CSS3 Generator
CSS Desktop
The CSS desktop lets you practice CSS3 code online, and renders the rendering in real time on the right, great CSS3 online practice tool.
HTML5 Revised version tracker
Font-face Generator
CSS3 Selector Test Tool
IE Print safety device
detailed list of CSS browser support
Reprint: http://blog.bingo929.com/html5-and-css3-tools-list.html
HTML5 and CSS3 Tools Resources Summary