Can I stop a fixed sidebar widget before it covers my footer?

I’m not seeing your fixed widget overlapping the footer anywhere. Could you provide a link to a specific page where you see that happening, and in what browser/version?

You could always try adding some CSS margin to the bottom of your fixed widget and see if that works.

In Chrome, Mozilla and IE, if I go here (https://www.bigshotmoms.com/) and scroll to the bottom of the page (or hit the end key), my fixed ad in the sidebar overlays (covers part of it) my new footer ad.

As I mentioned earlier, you might want to try adding some CSS bottom margin to that widget to see if it helps. You could also ask the developer who created the code for that fixed widget to see if they have any suggestions.

That’s outside my wheel house of tricks, but I appreciate you having looked.

Thanks

Learning how to target your site’s CSS will help you make certain design changes. Here are some very helpful posts that will help you customize your site with CSS:

https://dailypost.wordpress.com/2013/07/25/css-selectors/

https://dailypost.wordpress.com/2013/06/21/css-intro/

If CSS is new to you, here are some resources for learning more about it here:

• CSS Basics
• Editing CSS
• How to Find Your Theme’s CSS

While the above is from WordPress.com the principles hold true for self-hosted sites as well.

Getting a handle on some CSS basics will help you make all kinds of site tweaks. Good luck!