On Thu, Aug 2, 2012 at 2:42 AM, Robert O'Callahan <robert@ocallahan.org>wrote:
> On Thu, Aug 2, 2012 at 5:49 AM, Simon Fraser <smfr@me.com> wrote:
>
>> However, I wonder if this doesn't conflict with our earlier decision that
>> when you render the element(), it's as if you're starting painting from the
>> root, but only painting the target element and its descendants. Things like
>> filters etc. will create stacking context. So if the element() target has
>> an ancestor with a filter, we paint its positioned descendants in their
>> normal painting order (affected by the fact that the filter creates
>> stacking context), but we don't actually apply the effect of the filter.
>>
>
> Good point.
>
> What we actually do in Gecko is treat the element target as a stacking
> context when rendering its contents for element().
aha, so it's more like my suggestion:
*Maybe you could say that element() can only reference elements that
establish a context or elements that don't contain another context.*
Since you're establishing a new context, could we make so it would be OK
for your ancestor to have a "display:none"?