RE: [WSG] re: Firefox v3 and opacity on opacity

[Foskett, Mike]

Hi Johan,

 

Thanks for the address. I’ve just reported the bug to Mozilla. 

The effect occurs even in safe mode with all add-ons switched off. 

 

Mike

http://websemantics.co.uk/

 

 

From: li...@webstandardsgroup.org [mailto:li...@webstandardsgroup.org] On 
Behalf Of Johan Douma
Sent: 22 December 2008 23:07
To: wsg@webstandardsgroup.org
Subject: Re: [WSG] re: Firefox v3 and opacity on opacity

 

Hi Mike, 

I've just tested it on the 3.1b3pre nighly from yesterday on Mac OSX 10.4 an it 
works fine as well. 
There shouldn't be any difference between XP and Vista, but he I might be 
wrong. I haven't seen anything like this before, it's all a bit weird indeed. 
Have you checked bugzilla to see if there's a reported bug about this? If not 
maybe report it and see if other people have the same bug. 
https://bugzilla.mozilla.org/
And what about firefox without extensions?

Cheers, 

Johan Douma
johando...@gmail.com



2008/12/22 Foskett, Mike 

Good idea Jon,

Just tried it and the code still has display issues.

 

Johan,

I'm surprised it worked correctly for you.

The only difference I can see is you are running XP while my testing was on 
Vista.

Would that be enough to cause an issue?

 

Does anyone using FFv3.05 on XP or Vista have mouse-over display issues with 
the code?

If so, or not, what OS are you using?

 

 

Mike

http://websemantics.co.uk/

 

 

 

From: li...@webstandardsgroup.org [mailto:li...@webstandardsgroup.org] On 
Behalf Of James Ducker
Sent: 20 December 2008 12:34
To: wsg@webstandardsgroup.org
Subject: Re: [WSG] re: Firefox v3 and opacity on opacity

 

Perhaps try it with Firefox in safe mode, just to be sure it isn't an add-on?

On Sat, Dec 20, 2008 at 12:39 AM, Johan Douma  wrote:

It's working fine for me on Windows XP, FF3.1b2
No issues at all. 

Cheers, 
Johan 

 

2008/12/19 Foskett, Mike 

Hi Nick,

 

The issue shown occurred on two different PCs and one Mac running windows.

It doesn't occur on the Mac version of Firefox 3.

My PC is using version 3.05.

 

Here's a cropped screen grab of the supplied code, showing the effect after the 
mouse hover.

http://websemantics.co.uk/temp/example_firefox_3_opacity_issue.jpg

 

 

 

mike

 

 

 

From: li...@webstandardsgroup.org [mailto:li...@webstandardsgroup.org] On 
Behalf Of Nick Cowie
Sent: 19 December 2008 11:56
To: wsg@webstandardsgroup.org
Subject: Re: [WSG] re: Firefox v3 and opacity on opacity

 

Mike

I did not have any of that problem or any other issues with Firefox 3.04, 3.05 
or 3.1b2 on Mac OS X 10.5.6 

Nick

2008/12/19 Foskett, Mike 

Hi all,

 

After finally upgrading Firefox to version 3.05, I encountered a rather unusual 
bug.

 

When opacity is set to more than one level of container, contained links render 
badly on hover.

Hovered link text turns white on white, which doesn't return to the natural 
state on mouse out.

Scrolling the link off screen restores the link colour.

 

Here's a demo which only causes issues in Firefox v3.

 

http://www.w3.org/1999/xhtml"; xml:lang="en" lang="en">



  

  opacity

  

 html * {border:0 solid; padding:0; margin:0; list-style:none}

 a,

 a:visited {color:#5E6277}

 a:active,

 a:focus{color:#c60}

 a:hover{color:#000}

 #wrapper{border:1px solid #ccc; width:200px; padding:20px;}

 #panel{border:1px solid #f00; margin:0 auto; background:#eee; padding:10px}

  





 

   



 Gzip content: Speed up your site

 Accessible AJAX glossary

 Displaying code in web pages



   

 





 

Does anyone out there now of a solution?

 

Mike Foskett

http://websemantics.co.uk/

 

 

 

 



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Re: [WSG] NCFH Site Check and CSS Issues

[Benjamin Hawkes-Lewis]

On 22/12/08 20:55, Chris Kennon wrote:

Here a screen capture of the desired site layout and navigation styles:


The drop downs appear above a flash element. And some reports of the
background color not
appearing Firefox have been reported. Would the list review the site,
offering CSS suggestions as needed?




Like Henrik, I'm curious as to why a Flash object is being used, not a 
background image.


I suspect the drop downs aren't appearing above the Flash properly 
because its wmode is set to transparent not opaque.


http://kb.adobe.com/selfservice/viewContent.do?externalId=tn_15523

A few other issues:

(1) What's your plan for keyboard accessibility of the navigation (or 
the items the navigation leads to)? At the moment, as I tab through the 
page, for large swathes of the tab order there is almost no visible focus.


http://www.w3.org/TR/WCAG20/#navigation-mechanisms-focus-visible

http://www.w3.org/TR/WCAG20/#keyboard-operation

Make sure there's a visible focus ring.

(2) In your CSS, ul#mainNav a sets a height in pixels for an anchor. 
This is highly unrealistic in a medium where you don't have good control 
over the font size. It causes the navigation items to overlap with font 
size increased merely two steps in Firefox.


(3) The use of a background-image for the logo with the text positioned 
off-screen means that if the user enforces their own colors for 
increased legibility, the header _and its text_ will likely be invisible.


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Benjamin Hawkes-Lewis


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