It was a relatively uneventful first half with Brazil dominating the game.
Among other things, Vinicius Jr had a chance to put his team in the lead, but both teams went to the break without any goals scored.
Right at the end of the half, it got dark in the arena, but the lights came back on after just a few seconds.
It was then barely twenty minutes into the second half that both the Brazilian players and the supporters celebrated heavily.
Vinicius Jr received the ball from Casemiro to make it 1-0, but the goal was then disallowed for offside on video review.
Instead, the winning goal took until the 83rd minute when the ball ended up with Casemiro who let it bounce and dunked it in elegantly.
On the way to the goal, the Swiss defender touched Manuel Akanji.
After the goal, there was a party atmosphere among the Brazilian supporters in the arena.
The victory means that Brazil will become the second team of the tournament to be ready for the round of 16.
They are three points ahead of Switzerland in second place.
The other two teams in the group, Cameroon and Serbia, have one point each.