Updated CSS Visual Effects proposals.

CSS Animations

* described simplified sandwich model (that animations have no effect
  outside their duration and last specified animation wins)
* diagram showing the above
* specified animations to start at style resolution or document load,
  whichever is later.
* animation start events always have elapsedTime == 0

CSS Transforms

* removed text saying that elements cannot be drawn as intersecting.
* described that preserve-3d trees often need a flattening parent, otherwise
  elements can be hidden behind their ancestor's background.
* describe that preserve-3d is not always possible, such as when
  overflow is 'hidden'.

CSS Transitions

* no change

* specs/CSSVisualEffects/CSSAnimation.html:
* specs/CSSVisualEffects/CSSTransforms.html:
* specs/CSSVisualEffects/CSSTransitions.html:
* specs/CSSVisualEffects/sandwich.png: Added.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@32356 268f45cc-cd09-0410-ab3c-d52691b4dbfc
5 files changed