(FILES) In this file photo taken on June 25, 2016 A pedestrian shelters from the rain beneath a Union flag themed umbrella as they walk near the Big Ben clock face and the Elizabeth Tower at the Houses of Parliament in central London on June 25, 2016, following the pro-Brexit result of the UK's EU referendum vote. The European Union and Britain could agree the terms of a post-Brexit trade deal within hours, European sources told AFP on December 23, 2020, as negotiations continued. / AFP / JUSTIN TALLIS
A pedestrian shelters from the rain beneath a Union flag themed umbrella by the Big Ben clock face and the Elizabeth Tower at the Houses of Parliament in London on June 25, 2016. AFP

Before you celebrate Brexit, be clear what it is