I am upgrading from PB3 to PB5. I run into a few small compatibility issues. I am using Joomla 4 and the HelixUltime 2.1.1. template.
The PB3 site is www.deijsmannetjes.nl (original site)
The PB5 site is www.dev.deijsmannetjes.nl (dev site)
There are a few small differences between the 2 versions of the site:
On the original site, the header and footer of each page have a red background. On the dev site, the header and footer are black.
On the original site, there is a small down-arrow on the right of the 6th menu entry ("Over ons"). On the dev site, this arrow is replace by a rectangle.
On the original site, the footer has 3 columns/modules ("Ons adres", "Downloads" and "Aanmelden newsletter"). On the dev site, the first column is moved to overlap the second.
How can I fix these 3 issues?