CSS 3.0 in Visual Studio 2010

I would like to use Validation (CSS 3.0) instead of CSS 2.1 for Visual Studio 2010. I've scanned through SO and noticed a comment saying that 3.0 wasn't finalized so it wasn't available for 2008, but was unsure if this applied to 2010.

Do I just not use CSS 3?

Microsoft developers have released an update to the web standards to include CSS 3.0 in Visual Studio.

Web Standards Update for Microsoft Visual Studio 2010 SP1 http://visualstudiogallery.msdn.microsoft.com/a15c3ce9-f58f-42b7-8668-53f6cdc2cd83

After a simple installation, you will have the CSS 3.0 option in Visual Studio.

(The toolbar command is called "Cascading Style Sheet Version for Validation", and is on the "Style Sheet" toolbar.)

If you don't want to wait for the service pack, check this out:

http://visualstudiogallery.msdn.microsoft.com/7211bcac-091b-4a32-be2d-e797be0db210/view/Discussions

Worked great for me, although I needed to consult the Q & A for some installation tips.

I looked a couple months ago and couldn't find CSS3 support either. I just use the W3C online validation tool.

http://jigsaw.w3.org/css-validator/

For Visual Web Developer 2010 Express use this:

Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\VWDExpress\10.0\Packages{A764E895-518D-11d2-9A89-00C04F79EFC3}\Schemas\Schema 5] "File"="css30.xml" "Friendly Name"="CSS 3.0"

I did this for Visual Web Developer Express 2010:

1. Install this package.
2. Find in registry any key with css21.xml
3. Save keys as .reg
4. Edit keys changing "css21.xml" by "css30.xml" and "CSS 2.1" by "CSS 3.0"
5. Save it
6. Execute .reg files and click YES to add the new keys to the registry
7. You're done!!

Example:

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Microsoft\VWDExpress\10.0_Config\Packages{A764E895-518D-11d2-9A89-00C04F79EFC3}\Schemas\Schema 5] "Friendly Name"="CSS 3.0" "File"="css30.xml"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\VWDExpress\10.0\Packages{A764E895-518D-11d2-9A89-00C04F79EFC3}\Schemas\Schema 5] "Friendly Name"="CSS 3.0" "File"="css30.xml"

[HKEY_USERS.DEFAULT\Software\Microsoft\VWDExpress\10.0_Config\Packages{A764E895-518D-11d2-9A89-00C04F79EFC3}\Schemas\Schema 5] "Friendly Name"="CSS 3.0" "File"="css30.xml"

[HKEY_USERS\S-1-5-18\Software\Microsoft\VWDExpress\10.0_Config\Packages{A764E895-518D-11d2-9A89-00C04F79EFC3}\Schemas\Schema 5] "Friendly Name"="CSS 3.0" "File"="css30.xml"

[HKEY_USERS\S-1-5-21-819682056-1984509207-1467669795-1000\Software\Microsoft\VWDExpress\10.0_Config\Packages{A764E895-518D-11d2-9A89-00C04F79EFC3}\Schemas\Schema 5] "Friendly Name"="CSS 3.0" "File"="css30.xml"