Unusual scenario involving CSS Transition on Firefox for Website Navigation Menu

Here is my site's URL:

I am encountering an issue with the navigation bar (#cssmenu can be found in the source code) on my website. I have set it up so that the links change colors upon hovering, which works well. However, I wanted to add a transition effect for the background-color to fade in and out. This feature works perfectly in Chrome, but only the sub-links (those under 'device' and 'category') are affected in Firefox. I am unsure of why this discrepancy exists.

#cssmenu a {
    background: #999999;
    color: #FFF;
    -webkit-transition: background 1s ease;
    -moz-transition: background 1s ease;
    -ms-transition: background 1s ease;
    -o-transition: background 1s ease;
    transition: background 1s ease;
    padding: 0px 25px; 
}

#cssmenu ul li:hover > a { 
    background: #66FF99;
    color: #000000;
    -webkit-transition: background-color 0.3s ease;
    -moz-transition: background-color 0.3s ease;
    -ms-transition:background 0.3s ease;
    -o-transition: background-color 0.3s ease;
    transition: background-color 0.3s ease;
}

(For more details, check the source code of the site--CTRL+F #cssmenu)

Attempts made to resolve the issue:

  1. Changed 'background' to 'background-color'
  2. Applied -moz-transition accordingly
  3. Experimented with the order and placement of transition attributes in the CSS code (e.g., under #cssmenu as well as #cssmenu:hover)

Answer №1

After some investigation, I was able to find the solution to the issue at hand. For those facing a similar problem, here is the link to my resolved code snippet: http://jsfiddle.net/mrytF/2/

The root cause of the problem was identified in lines 59-61. The code block in question looked like this:

.cssmenu a {
  -moz-transition: background 1s ease;
}

It became evident that the selector .cssmenu wasn't defined, leading to the issues encountered. By removing this part of the code and eliminating redundant CSS properties, the functionality was restored successfully in Firefox.

I hope this detailed explanation proves helpful in resolving any similar dilemmas.

Edit

The issue involving the sub-menu display has also been rectified. It was noticed that on line 22, #cssmenu ul li.hover should have been #cssmenu ul li:hover to ensure correct behavior. Here is the updated fiddle for reference:

http://jsfiddle.net/mrytF/3/

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