CSS Vendor (browser) Prefixes

CSS vendor prefixes or CSS browser prefixes are a way for browser makers to add support for new CSS features in a sort of testing and experimentation period. Browser prefixes are used to add new features that may not be part of a formal specification and to implement features in a specification that hasn’t been finalized.  It is temporary.

The CSS browser prefixes are:

• Android: -webkit- 
• Chrome: -webkit- 
• Firefox: -moz- 
• Internet Explorer: -ms- 
• iOS: -webkit- 
• Opera: -o- 
• Safari: -webkit-

Example:
Setting a rounded corner on a box:

• -moz-border-radius: 10px 5px;
• -webkit-border-top-left-radius: 10px;
• -webkit-border-top-right-radius: 5px;
• -webkit-border-bottom-right-radius: 10px;
• -webkit-border-bottom-left-radius: 5px;
• border-radius: 10px 5px;