announcement bar not showing up on desktop

Site URL: https://3emanagement.org/

My announcement bar pops up on mobile devices but not on desktop. I reached out to Squarespace support and they believe it is a CSS issue. I don't recall editing the code so I'm not sure if that's the issue.

If you have experienced the same problem or know how to fix it I would really appreciate it!

Thank you. 

SS is correct is it a Custom CSS issue. The following ruleset is the issue.

.Header {
  position: fixed;
  z-index: 9999;
  width: 100%;
  top: 0px
}

@creedon I don't see that code... any other ideas on what it could be/how to fix it?

3 hours ago, ebergin said:

I don't see that code...

Look in Design > Custom CSS.

@creedon Got it- thank you!