Despite being the only significant party in England that opposes Brexit, the Liberal Democrats did not perform noticeably better in Remain voting areas. (bbc.co.uk)
Both use a first past the post (i.e. the candidate (s) with a plurality of votes wins) in individual voting areas (parliamentary constituencies at national level, wards an local... (politics.stackexchange.com)
The post-Brexit realignment of British politics continues, partly because the Tories recouped a lot of ex-Ukip votes, but also because they gained directly from Labour in Leave - voting areas such as Nuneaton. (politics.co.uk)