I would use position: relative;
for this. It definitely works as long as it’s added in the right section (assuming there’s nothing else conflicting with it).
I wouldn’t use position: absolute;
as it won’t show up consistently across certain browsers and will cause that part of your site to appear distorted.
Here’s an example – https://appfinite.com/topic/three-questions-about-aspire-pro/#post-20709
Once you add position: relative;
it should work fine, as I’ve tested it on your site and it immediately removed the sticky menu. If you’ve added it in and you didn’t see a result, it may have been your browser cache. Can you add it back in, and then click your Reload button so it clears the cache, and then see if it works? If not, I can login and get it working instantly if you want. I just want to make sure it works properly in all browsers including mobile devices. Just let me know.