petclinic ui - on small screen some dialog fields are inaccessible

[stevelr]

On a small vertical screen (as I get if I split my screen vertically in half) when the add owner dialog appears, the 'First Name' field is not visible, and I can't move the dialog down to view it. I can slide the dialog up to access all other lower fields and the 'Add Owner' and 'Close' buttons at the bottom of the form. Using firefox 97.0.1 on linux.