Migrate YUI 2 to YUI 3

What is the migration path for upgrading the Yahoo JS & CSS libraries from version 2 to version 3?

Specifically: CSS & fonts, button, TabView.

Any pointers to further information about issues encountered, tips to make it easier, etc would be greatly appreciated.

Different Google searches (e.g. upgrading yui2, migrating yui2) didn't开发者_StackOverflow社区 turn up much on this.

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CSS Fonts is pretty much 1:1 in my experience. TabView works differently but functionality wise should be equivalent.

Here's a great overview recently posted to the YUI blog that gives you a pretty thorough overview of each component in 2 vs 3.

http://www.yuiblog.com/blog/2010/11/05/a-status-check-on-the-yui-2-to-3-transition/