How to add a sticky message widget in Altitude Pro

In the members-only forum a user asked:

I tried adding a sticky message widget to Altitude Pro but it doesn’t seem to work. I’d like a tutorial on this please.

Thanks

In this article we shall create a custom Sticky Message widget area, display it above the header and add necessary CSS to make it appear fixed along with the header (at desktop widths) in Altitude Pro.

Step 1

Add the following in Altitude Pro's functions.php: