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Internet Explorer 9 puts your site at the center of the user's experience in Windows. Build it with hardware-accelerated
HTML5, CSS3, and JavaScript. Discover new tools that simplify how you develop for many browsers and devices. Learn more..

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Your site feels more like a native app in Windows 7 with IE9. When users pin your site to their taskbar, they visit it more often, spend more
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Pinned Site developer documentation

How To Build a Pinned Site in Less Than 5 Minutes

Case Study: Huffington Post Reinvents the "Big News" Experience

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CSS3

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JavaScript

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Emerging specs

Experiment with the latest web standards at HTML5 Labs

IE Team Blogs

Internet Explorer 9 HTML5, CSS3, Compatibility, and More | MSDN

High performance HTML5 content in Metro-style Apps
Metro style apps in Windows 8 have all the performance benefits of IE10 when showing Web content. In Metro style apps, Web content... more

Choice
There is more choice than ever when it comes to browsers today. This is a fantastic thing and we believe that choice makes the web... more

CSS3 3D Transforms in IE10
CSS3 features make it easier to build rich and immersive Web experiences. A recent post described how Web developers add pers... more