You may want to:
- Refer to third party AdminLTE 3 docs, test if the original AdminLTE layout works in mobile as you want, if yes, compare the classes with your site.
- Review your classes, e.g.
layout-navbar-fixedis not forNAVBAR_CLASS. - As docs says: PHPMaker template is based on the
layout-fixedonly. If you change the layout using this option, there may be unexpected behavior and you may need to add some adjustments by CSS (and JavaScript) yourself. - Inspect CSS in your browser (switch to mobile view first) to check what CSS affects the layout.