[whatwg] New method for obtaining a CSS property
Brett Zamir
brettz9 at yahoo.com
Wed Jan 26 18:47:11 PST 2011
While it can already be done dynamically by iterating through
document.stylesheets, in order to allow full separation of presentation
from content in a convenient way and foster best practices, I think it
would be helpful to have a built-in method to obtain a CSS property for
a given selector.
This is particularly needed by canvas which has no inherent way of
obtaining styles set in a stylesheet, but would also be useful for HTML
and SVG where setting a class dynamically may not always be sufficient,
such as in a dynamically powered transition which wants to obtain
starting and ending style properties.
(This issue might also highlight some gaps in CSS, with, for example,
there being no exact equivalent for say shadow color as used in canvas,
but even without such changes to CSS, the proposed method would still be
useful.)
Brett
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