Tables Won't Center – HTML Help, Please?

Hello everyone!

I have some tables on my WordPress site that I’m trying to center and I just can’t get them to center on the page. No matter what I do, they stay centered to the left.

Here’s an example page: (excuse the mess, I’m still working)
https://takemymac.com/get-started/

See those pictures and text? That’s in a table. It’s aligned to the left and I’m trying to center the table in the middle of the page like the text above it is.

Can someone provide me some help? I’m guessing it’s some HTML code that I need to apply that I haven’t done yet.

Thank you!