The headers set as vertical have a too wide horizontal size.
In order to fix it, I would suggest Softr to create three or four sizes when the header is set as vertical.
The L size would be the actual size.
The M size would a size like the slack lateral navbar
The S size with a width of 10% less than the size of the slack lateral nav bar
The Xs size with a width of 20% less than the size of the slack lateral nav bar
Ps: I know the custom code to reduce the width of vertical headers. I just want it native please!