adding height: 100vh to the #map-container section appears to fix both the line length issue and the odd sizing problem with tiles missing from map bottom.
Add css to map-styles that sets the map to an appropriate height. Maybe vh units make sense here, I'm not sure. But should fix things, I hope.
adding
height: 100vhto the#map-containersection appears to fix both the line length issue and the odd sizing problem with tiles missing from map bottom.Add css to map-styles that sets the map to an appropriate height. Maybe vh units make sense here, I'm not sure. But should fix things, I hope.