Hello guys,
I have a section with 4 normal columns and I would like to change the breakpoints on that section to show like the screenshot below:

So basically I just need to change the following resolutions:
768PX - 979PX
481PX - 767PX
so show 2 columns like that:

Is there any CSS I can add on the left to do that?
I try to apply some code I found on similar topics but without success.
Thanks in advanced for any help.
Have a wonderful day,