This is an old revision of the document!

Transition scenarios the CSSOM has to cope with somehow:

* Property changes into a longhand property. E.g. some css3 text stuff..? Sometimes this only partially happens. E.g. with 'overflow' the situation is weird iirc. * Property value changes into a comma-separated list. E.g. background-image: <uri> becomes background-image: <uri> [, <uri>]*. * Property value changes into accepting multiple component values. E.g. the 'cursor' property now takes <x> and <y> in addition to <uri>. 'overflow' now takes two values rather than one. * Property component value changes. E.g. <uri> becomes <image>.