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by dion.
Original Post: Links for 2009-02-21 [del.icio.us]
Feed Title: techno.blog(Dion)
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Feed Description: blogging about life the universe and everything tech
Checking The Rear-View Mirror
"Alex Mogilevsky talks about IE8's new layout engine. It was generous of him to mention that the subpixel units and zoom approach first appeared in Firefox! It's interesting to get a little glimpse under the hood. It sounds like they have something much like our frame display lists. The glimpse we got of their "layout object dump" and "display list dump" output was quite revealing if you know what you're looking for, but I'll leave that as an exercise for the reader :-).
On the flip side, the decision to make the layout code reusable for apps like Word seems dubious, and I fancy I could sense him doubting it too. And Alex seemed remarkably sanguine about supporting an IE8-mode in IE9; "putting an 'if' statement around every bug fix" is far from the whole truth and would itself be a big maintenance burden. I stand by my skepticism of their whole approach here."
When good tests go bad: Firefox on Acid(2)
Why it's OK to fail the current Acid2.
".parser { background: red pink; }
Two colors for a background as valid CSS? Surely you jest!
Actually, we don’t. CSS3 says background-color takes two colors, one for normal use and one for use if a corresponding background-image doesn’t load. The red ends up getting used as the background color, and the yellow that would have been present if the property hadn’t applied no longer shows. CSS3 makes previously-invalid CSS valid, and that’s okay, because CSS error parsing is explicitly designed to allow it."
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