Internet Explorer 9 offers the best HTML5 and CSS3 support
A few years ago, the Firefox fanboys were arguing for Internet Explorer to drop its own Trident rendering engine, and adopt Firefox's Gecko engine. More recently people have argued for Internet Explorer to use Webkit. Looking at these results, shouldn't we be asking Firefox and Chrome to use Trident? Well no, but it's the thought that counts. As we can see above the Platform Preview of Internet Explorer 9 passed all 192 of the tests co-developed with the W3C, no other browsers came close....