Proper syntax to modify opacity?

For years, I've been using the following 3 lines of code whenever I've needed to make a div or image semi-transparent.
    filter: progid:DXImageTransform.Microsoft.Alpha(opacity=80);
    opacity: 0.8;
    -moz-opacity: 0.8;
I remember there was a reason why all 3 lines were necessary (one was for IE, the other FF, and I forget the third).
My question is... are all 3 lines still necessary to ensure maximum compatibility? Or has either of the lines become obsolete in today's environment?
Thanks.

hans-g. wrote:
Hi,
shall we really start again the unnecessary, unproductive discussion? I'm really amused about the FF users, which are satisfied with the standard and search the errors in DW! Poor FF users cause they need an IE AddOn!You have to use it, and all is ok!
... and dear FF people: you shouldn't bite the hand that feeds you!
Hans-G.
Whoa, overreact much?
You want to talk unnecessary and unproductive? How about starting by reading the OP before you dispense your IE-only wisdom?
The original question asked if the following 3 lines of code were still relevant today :
filter: progid:DXImageTransform.Microsoft.Alpha(opacity=80);
opacity: 0.8;
-moz-opacity: 0.8;
It even specifically asks :
are all 3 lines still necessary to ensure maximum compatibility?
So clearly, ensuring maximum compatibility is desired.
Then YOU reply...
you could look/use at the source code of my semi English/German
example:
http://www.goldschmiede-blumberg.de/AdobTest/LayerE.php
Which uses "filter:alpha(opacity=30)" as a method, and didn't even show up in my FF3 browser. In fact, until I looked at the source code, I was wondering why you were sending me to this page, because everything is 100% opaque in my browser.
Kindly and without malice, I suggested that you use the method I've been using, and quoted in the OP.
This method, which involves adding only a few characters more to your existing style, ensures the same effect across both IE and FF.
And you respond with this anti-FF nonsense?
Dude, it's one thing to not want to waste any additional time looking for FF-compatibly solutions, given the small number of FF users out there. I get that part. However, it's another thing entirely to go out of your way to make sure your site DOESN'T work on FF, simply because of your irrational spite towards Mozilla.
The time it took you to insult FF and everyone using it, you could have made your site FF-compatible.
I guess we all have different priorities, huh?
Achtung!

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Murray --- ICQ 71997575
Adobe Community Expert
(If you *MUST* email me, don't LAUGH when you do so!)
==================
http://www.projectseven.com/go
- DW FAQs, Tutorials & Resources
http://www.dwfaq.com - DW FAQs,
Tutorials & Resources
==================
"Michael Fesser" <[email protected]> wrote in message
news:[email protected]..
> .oO(dunwellguitar)
>
>> I'm not sure on the "right way" but in general I
have always opted for
>> the one
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>>the
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>
> Got an example for such "breaking"?
>
> Micha

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The table structure is appended at the bottom of this message.
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pgg02

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Thanks
Daniel Yang
TechNet Community Support

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