I try to align a block and headline in the off canvas panel in the center. However, it goes in the left side whatever I do.
If you check the website, it is the last line/s in the off canvas “post my…”. It’s a block element using the hook after_slideout_navigation.
Add set-max-width to the class list of the Container Block in the Advanced section of the Page Settings, then add this in Appearance > Customize > Additional CSS: