How to display horizontal section 3 columns on mobile?

Your software
My Mautic version is: 4.3.1
My PHP version is: 7.4
My Database type and version is:

Your problem
My problem is: Hi, I am composing an email using grapesjs. When I use a section with multiple columns on the desktop the display is horizontal. On mobile, the display is vertical. Now how do I display horizontal lines on mobile?

These errors are showing in the log:

Steps I have tried to fix the problem: create email using 3 column section. Then switch to mobile display mode

you can group hem together in mj-group and see what happens…