Grid orientation from horizontal to vertical

Hi!
I would like to change the grid (in my case a 3 row grid) orientation from horizontal to vertikal earlier (at 991px) than now (768px).

CSS:

@media (max-width: 991px) and (min-width: 768px) .u-layout-row > .u-size-20-md {
    flex: 0 0 33.33333333%;   **New: 100%**
    max-width: 33.33333333%; **New: 100%** 

}

And the change should take place inside Nicepage as well as it is much easier to align the content properly.
Any advice?

Regards
Lutz

Last edited 20 September 2019 by lutz.nagel