UEFA allowed 30% of fans back into grounds ahead of the most recent international break, although these rules vary depending on the rules of local governments.
This has given us images of fans in the stands at some games. On Wednesday, one of those will be Croatia v France, which will take place at the Maksimir Stadium in Zagreb.
In recent days, the Croatian FA have authorised ticket sales after working with local authorities, meaning that 7 000 fans will be allowed in.
Last Sunday there were fans present against Switzerland, a year after the national team's last match in front of the public, and they'll be back again against France. However, away fans will not be allowed with ticket sales restricted to the home side.