In Moodle 3.5.x, any user tour steps pointing to the first navbar item in Boost (through CSS selector body.drawer-open-left [data-region="drawer"] [data-key="home"]' or 'body.drawer-open-left [data-region="drawer"] [data-key="myhome"]'are incorrectly displayed underneath the navbar, rendering the text unreadable.

When inspecting the element, we found that the first and active item in the navbar gets a very low z-index of '2' or '4', whereas other navbar elements get a value of at least 1001.

To replicate:

• Create a user tour with at least one step, pointing to an active and an inactive element in the navbar.
• Run the user tour
• Check that the user tour step of the active element displays underneath
• Check that the user tour step of the other element displays correctly
• Inspect the element with the browser inspect tool and verify that the .list-group-item.active has a z-index a very low z-index value.