Installed new theme and created subtheme for customizations. Now we don't need the asset-injector. Just edit style.css directly in the theme/css directory.
I found discovered a css grid property - https://www.w3schools.com/css/css_grid.asp
This also makes it easy to style for short width mobile devices. Which I've setup in the css file.
Not sure the best way to style things yet.
I also added Ride Host Contact Info field in the hosted ride contact type. This is independent of the user creating the ride. So that could be an issue...