Recently I was playing with HTML5 and I was in need of HTML5 IntelliSense in Visual Studio 2010. I found a great extension which will provide IntelliSense support for HTML5. I thought it would be great to share it with you all. You can download that tool from the following link.
Once you download - install it. You need to change your validation to HTML5 in your Visual Studio 2010 configuration. For that you have to go to Tools->Options->Text Editor->HTML->Validation and there you need to select the HTML5 like in the following image.
That’s it. Hope you like it. Stay tuned for more..Happy programming.