Full-width embeds and galleries

I’m having issues embedding a YouTube video onto a blog post. I’m using an OceanWP child theme, and my posts are set to full width. The videos that I embed show up covering the entire width of the screen, not adhering to my 700px full width setting. I have noticed that columns and galleries also show up in full width, which looks pretty terrible.

Any and all tips on formatting are welcome! Thanks.

• This topic was modified 6 years, 2 months ago by t-p. Reason: Moved to Fixing WordPress. This is not an Everything else WordPress Topic

The page I need help with: [log in to see the link]