The following formats are accepted for assigning the vendor-specific property names:

'-' + vendor identifier + '-' + meaningful name
'_' + vendor identifier + '-' + meaningful name

Vendor specific properties
PREFIX ORGANIZATION
-ms-, mso- Microsoft
-moz- Mozilla
-o-, -xv- Opera Software
-atsc- Advanced Television Standards Committee
-wap- The WAP Forum
-khtml- KDE
-webkit- Apple
-prince- YesLogic
-ah- Antenna House
-hp- Hewlett Packard
-ro- Real Objects
-rim- Research In Motion
-tc- TallComponents