> For the complete documentation index, see [llms.txt](https://help.shopifas.com/manual/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.shopifas.com/manual/website/help.naviplus.io/frequently-asked-questions/customize-user-interface-ui.md).

# Customize User interface (UI)

- [Using built-in settings or custom CSS?](https://help.shopifas.com/manual/website/help.naviplus.io/frequently-asked-questions/customize-user-interface-ui/using-built-in-settings-or-custom-css.md)
- [Remove menu item active state?](https://help.shopifas.com/manual/website/help.naviplus.io/frequently-asked-questions/customize-user-interface-ui/remove-menu-item-active-state.md)
- [Align level 3 submenu in mega menu?](https://help.shopifas.com/manual/website/help.naviplus.io/frequently-asked-questions/customize-user-interface-ui/align-level-3-submenu-in-mega-menu.md)