"It could've been thorny but it wasn't, because from the outset, we were focused on making art," Klopp told reporters after the game.
"It was an outstanding first half and being strong on the counter and pressing for almost [the entire 45 minutes] was the key.
"We played great and deservedly led at the break. I was impressed with our style of play and we will crack the 60-point mark against Mainz on Saturday."
The win keeps BVB on course to finish second in the Bundesliga after Bayern Munich were crowned champions last week.