I would like to export my codepen project to GitHub. Here is a link to my codepen https://codepen.io/Sarlot/pen/KKQvajE?editors=1111 and here is my repo in GitHub https://github.com/Sarlota-Duskova/PulleySimulation

I did export from codepen but it does not work in GitHub pages, so I tried to change a position of script including javascript and try to use https instead of http, but nothing is work. Could somebody help please? JavaScript does not working properly.