Getting a white margin on the right side of my website

Getting a white margin on the right side of my website
0

#1

Hey everyone, I am having an issue with my layout. My section 1 and section 2 seem to have a white margin on the right side. You can tell when you drag left a white space appears. Why is this happening? Here is the link to my codepen . https://codepen.io/zootechdrum/full/PRxbMN/


#2

its caused by

#part3{
margin:-40px;}