Accesskey is used to set the focus of a control , consider below the exampl
<table>
<tr>
<td accesskey="P">
<input id="txt1" type="text" accesskey="q" />
<input id="txt2" type="text" accesskey="r" /></td>
</tr>
</table>
If Press Alt+P it will focus to td, if is press Alt+q it will focus to text1 textbox.
VS 2012 comes with inbuilt HTML 5.
From the .NET developer's perspective, highlights include:
Automatic binding redirection support
LOH compaction
Event Source improvements
Better overall performance.
64bit Edit and Continue
Better a sync debugging
Call stack visualization
Editor improvements
Enhanced scroll-bar functionality
Inline Viewing of definitions
Better XAML design time support