While attempting to test MDLQA-10361 I ran into trouble.
The Moodle Docs page at https://docs.moodle.org/31/en/User_tours#Help_with_CSS_selectors does not offer much help:
===Help with CSS selectors===
If you wish to use CSS selectors as part of your user tour, your browser's developer tools will be very useful in helping you create these selectors:
*[https://developer.chrome.com/devtools#dom-and-styles Google Chrome]
*[https://developer.mozilla.org/en-US/docs/Tools/DOM_Property_Viewer Mozilla Firefox]
*[https://developer.microsoft.com/en-us/microsoft-edge/platform/documentation/f12-devtools-guide/ Microsoft Edge]
*[https://developer.apple.com/library/content/documentation/AppleApplications/Conceptual/Safari_Developer_Guide/ResourcesandtheDOM/ResourcesandtheDOM.html#//apple_ref/doc/uid/TP40007874-CH3-SW1 Apple Safari]
What I think is urgently needed is a working example of a simple CSS selector for a user tour. But, not being a programmer, I have not been able to make one and add it to the Moodle Docs page..
Any help will be greatly appreciatted.