I have created my resume using bootstrap 4 and want accordion facility of collapse for showing my projects. It's not working on codepen, However when I run it locally on my html editor with all bootstrap link included accordion was working fine. Have I not included any css,js file that must have been added.
[Codepen Link- GO to Projects section]
[Same project on my local desktop--github link]
I'm working through Free Code Camp and I am making a tribute page for Violeta Parra. I've added the jQuery and jQuery UI plugins in settings and I've copied some stuff straight from the FCC lessons but it don't seem to be working. Here is the pen: