
Due to some changes in the rc updates fo Joomla4, the way to setup your menu has changed, or rather, you need to take something into consideration.
When publishing the menu module, you have to use a certain setting for the menu to work as desired.



Changing the height of the header can be done with some simple CSS.

By default, the KickstartCassiopeia module allows to set a background-color for your header.