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" BilottaReceived on Thursday, 21 January 2010 17:12:23 UTC
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