Positioning a element

I am stuck over here , i want to give the last section of this page i.e the blog section in last (specifically blogs area) a fixed position like everyone have in this page but somehow it’s still working Inefficiently even after i tried some different changes .
i want this in a slider only which slides top to bottom or vice versa as i found this could be done when i rotate the slider to 90 degree and the container or div block should be relative or absolute . But this effecting the content inside that inefficiently . if you people have any solution let me know .
Thanks

here’s read only link of file : https://preview.webflow.com/preview/team-app-56cb59?utm_medium=preview_link&utm_source=designer&utm_content=team-app-56cb59&preview=ffaea64d378328222933e0c00d9febe2&mode=preview