CSSFrameConstructor

This is a page for documenting the nsCSSFrameConstructor with the goal of simplifying, stabilizing and bugfixing it.

A major piece of information that we need to document is the constraints that various frames have on what child and parent frames it must or must not have. We should also document which transformations we perform between the content tree and the frame tree to enforce those constraints. This is tracked on the pages:

• CSSFrameConstructor/Constraints
• CSSFrameConstructor/Transformations