[jquery-dev] Re: IE7 .png transparency bug on fadeIn and fadeOut

[Erik]

What you need to do is put the png in a container element and fade the
container instead.
http://community.livejournal.com/webdev/466959.html


/erik

On Aug 31, 11:03 pm, "[EMAIL PROTECTED]"
<[EMAIL PROTECTED]> wrote:
> I guess the solution is to use the show() function and not fade.
> show("slow") produces the same black background.
>
> On Aug 7, 5:24 am, Yereth <[EMAIL PROTECTED]> wrote:
>
>
>
> > In other words: Internet Exploder sucks... and that sucks, as most
> > people are using it. ;_;
>
> > On Aug 5, 12:05 am, kuralj <[EMAIL PROTECTED]> wrote:
>
> > > Hi,
>
> > > I can't offer you a solution (unfortunately), but I can at least
> > > clarify the problem for you a bit further:
>
> > > This issue is not a jQuery issue as such, it is an IE7 filter issue
> > > and is a known and documented problem with the way IE address things
> > > like clear type (anti-aliased) text rendering and PNG opacity when
> > > IE's in built filters are applied.
>
> > > So, the good news (or is that bad news?) is that this isn't a jQuery
> > > 'bug', and the bad news (or is that just - more bad news?), is that
> > > I'm not aware of any workaround for this.
>
> > > More details from the IE developer team is available on the IE 
> > > blog:http://blogs.msdn.com/ie/archive/2005/04/26/412263.aspx
>
> > > Specifically the excerpt below from that article:
>
> > > "Certain filters may not behave as expected due to how filters are
> > > implemented.  Filters work by rendering the content of their attached
> > > element to their work surface and then modifying that surface before
> > > compositing it to the output surface.  Because of this, alpha blending
> > > of a transparent PNG with non-binary transparency may lead to
> > > unexpected results.  For example, applying a BasicImage filter with an
> > > opacity attribute to an IMG element with a transparent PNG will fill
> > > the work surface with the transparent PNG alpha alpha blended with a
> > > solid gray background.  The work surface will then be alpha blended at
> > > the specified opacity level with whatever is under the filter."
>
> > > Hope that helps a bit, and if you come up with a solid solution,
> > > please share :)
>
> > > Ian
>
> > > On Aug 5, 5:31 am, Chuck <[EMAIL PROTECTED]> wrote:
>
> > > > Hey all,
>
> > > > I've run across a bug and am wondering if others have found a
> > > > workaround or solution. I have an absolutely positioned div with a
> > > > background image that has .png alpha transparency.  Debugging has
> > > > isolated the issue to jQuery's fadein effect. It also errs with
> > > > animate({opacity}). It works fine before calling the animation.
>
> > > > A screenshot demonstrating it in Safari (left) and IE (right) post-
> > > > animation.
>
> > > >http://i36.tinypic.com/28krlh4.jpg
>
> > > > Has anyone run across this bug before? Are there any fixes or
> > > > workarounds?
>
> > > > Many thanks!

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