Class mostly reprinted American titles, IIRC.
If so then it would depend on whether or not the original American comics were PD or not.
Stories from such companies as DC or Atlas (Marvel), for example, could not be included on the site but those from companies such as ACG, Charlton, Hillman, Quality and others quite possibly could.
We'd almost have to go on an issue by issue basis to check the source of the original publication.
I know that DCM has recently started adding more of these sorts of British reprints and they have had to do some selective editing on some titles.
Best
Joe