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Re: Proposal: parent selectors

From: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Date: Thu, 21 Jan 2010 18:11:30 +0100
Message-ID: <cb7bb73a1001210911j36fc1339wd936f6eb501e3fb4@mail.gmail.com>
To: Boris Zbarsky <bzbarsky@mit.edu>
Cc: Eduard Pascual <herenvardo@gmail.com>, www-style@w3.org
On Thu, Jan 21, 2010 at 5:48 PM, Boris Zbarsky <bzbarsky@mit.edu> wrote:
>
> It's not just progressive rendering.  DOM mutations happen after the
> document has loaded.  On some sites, every 10ms, forever.  On other sites,
> thousands or tens of thousands at once.

When the DOM changes, the UA still has to rerender everything below
_and_ above the changed elements. Often, an element has to look at all
its descendant to determine things such as its dimensions; so I don't
think this would be TOO much of a hit, would it?

-- 
Giuseppe "Oblomov" Bilotta
Received on Thursday, 21 January 2010 17:12:23 GMT

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