Quick Tip
There is a HTML5 Shiv JavaScript 
workaround to enable HTML5 elements in older versions of Internet Explorer (IE 6, 7 and 8). This Shiv will enable older versions of IE to recognize the HTML5 elements, but some feel there is a disadvantage to using this Shiv. What if the web site visitor has JavaScript disabled? A small portion of the audience may have JavaScript disabled. If disabled, then the script will not work and your site will not appear as intended. So, if you’re going to use the Shiv, be aware this may not completely solve the problem.
Tips, Tricks & Tutorials
HTML5: Current Support
Parts of HTML5 specifications are supported now and, as a web designer, you can implement those parts in your web sites today. It is important to know which parts of HTML5 are supported before you start using it. For example, Internet Explorer 8 does not support the new audio and video tags. Below are several links to help you learn which features of HTML5 you can use now.
- Findmebyip.com
A web designer’s checklist that lists support for certain HTML5 features and CSS3 properties. Also compares the Windows and MAC version of browsers. - samples.msdn.microsoft.com/ietestcenter/
This comparison chart by Microsoft compares IE against other major browsers. Not all HTML5 features are listed, but a great amount of detail is provided for many of the features that are listed. - caniuse.com
A chart of various specifications and capabilities. Can search and filter results for features and support in various browsers. Find links to demo pages, articles and test pages of many HTML5 features. - http://en.wikipedia.org/wiki/Comparison_of_layout_engines_%28HTML5%29
A comparison of layout engines for HTML5 on Wikipedia. Comprehensive, but not always up-to-date. - Html5test.com
Your browser will be tested and scored based on HTML5 support. - findmebyIP.com
Test specific user agents for HTML5 and CSS3 support.