How to place the slider on the Owl Carousel in the center of the screen (page)?

Question

css

I'm making up a site, it has a slider in the header located in the center (both vertically and horizontally).
How can I place it exactly in the center?

Answer 1

1. Flexbox like this: https://jsfiddle.net/kLpw91bf/
https://html5book.ru/css3-flexbox/
2. Google-> "CSS center block"