Help with portfolio navbar

Hello FreeCodeCampers!

I’ve started to create my portfolio site, I’m just at the beginning of it, but already stucked a bit. So, I’ve only made the navbar yet. My problem is that when i make the window smaller, the collapsed button is not working. I’ve been searching for help in Google, tried a few, but they did not help. Any suggestions anyone, please?

It seems you forgot to add Bootstrap’s js file and only included jQuery.

Oh, indeed! Thank you very much! I just didn’t know that in codepen settings, on css tab need to add bootstrap, and on javascript tab need to add jquery and bootsrap also.