Prefixize CSS code

What are CSS vendor prefixes?

CSS vendor prefixes are a way for web browser developers 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.

Using CSS vendor prefixes

With Rapid PHP you do not have to worry about vendor prefixes as you can simply write valid CSS3 code and then use the built-in Prefixize CSS feature.

To prefixize a CSS file

  1. On the CSS menu, click Prefixize CSS.


  • The built-in prefixizer does not add all possible prefixes to cover all legacy situations, it only adds those prefixes required by commonly used browsers.