Horizontal Scrolling

Hey all, I’ll try and figure this out on my own but figured that someone might have the solution.

I made my page responsive to three screen sizes but the layout still has horizontal scrolling.

Any idea where I am going wrong?

Thanks in advance if you solve it before me;

here’s the link: https://sws.pcc.edu/student/CAS206_rocco.charamella_30225/alvinjohnsii57/private/project/template.html