Only half of the slant dividers show up.
This is because of the fadeInUp.
Slants currently work as follows: element height is increased using padding, top-margin decreased (to cover for the slanted element above), and a slant is cut from the bottom of this element.
The problem is that fadeInUp seems to change the z-index so that it shows above other elements. This is not a problem if there is no background. However, the sections-with-bg do have backgrounds, so they will cover the slant above, therefore appearing to be flat.
Only half of the slant dividers show up. This is because of the fadeInUp. Slants currently work as follows: element height is increased using padding, top-margin decreased (to cover for the slanted element above), and a slant is cut from the bottom of this element. The problem is that fadeInUp seems to change the z-index so that it shows above other elements. This is not a problem if there is no background. However, the sections-with-bg do have backgrounds, so they will cover the slant above, therefore appearing to be flat.