First practice won't open

Tell us what’s happening:

Trying to do practice, but can’t open it. What to do?

Objective: Build a CodePen.io app that is functionally similar to this:

Your code so far

Your browser information:

User Agent is: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36.

Challenge: Build a Tribute Page

Link to the challenge:

I’m not able to reproduce this, so maybe it was a temporary CodePen glitch. I also see that you have a lot of browser extensions installed. One or more of them might be conflicting with CodePen. You might want to try opening the page in an incognito browser that has the extensions disabled.