Grid to Mobile/Tablet trouble

Design help General
1

Hi, I am generally new to webflow. I am attempting to create a grid for a clients website the desktop versions look fantastic but it is not transferring over to the mobile/tablet view. Could anyone help me?

Thanks!

Here is my site Read-Only: LINK
(how to share your site Read-Only link)

2

Same here:
https://preview.webflow.com/preview/corena-3-1-53109ce41b1d8595fd287ebe7fd8?utm_medium=preview_link&utm_source=designer&utm_content=corena-3-1-53109ce41b1d8595fd287ebe7fd8&preview=1dc493f4a39c31e5e3dae243123c7721&workflow=preview