how to aligne videos in a horizontal line ?

Hi there,

I just activated the focus theme and quite like it.
But I don’t understand how to get my videos lined up horizontally instead of below each other.
I would prefer 4 videos in a line then the next 4 in a new “line” and so on…..hope I’m making sense.

If anyone can help any advice will be appreciated. But please keep in mind that I’m a complet newbee to wordpress and have pretty much zero knowledge on it.

Thanx
M