I’m using the sparkling theme, and everything is fine using Firefox or Chromium-based browsers.
Using current Internet Explorer or Edge the Header Menu - Dropdown isn’t working correctly; also the background color within the dropdown is not working properly.
It can be seen at the demo page Demo Page or on my page at My Homepage.
I have already seen, that there were similar problems with other colorlib themes but I hadn’t found an entry for the sparkling theme.
I thank you in advance for the help.