OT: How to allow certain images to extend preset margins without changing margins for the text in Rocinante?

I’m using the Rocinante theme with has a large margins. I have a post where it’s working well and where it’s ok for the images to be restricted by the margins.

But for a newer post, I was hoping to allow just the images to go beyond the margins while not changing the layout/margins of the text. This is because I need to use charts that need to more visible on the page.

Is there a way to allow certain images to extend past preset margins in themes without affecting the text?

Please do not cross-post the same question.
Especially after the previous topic with it has been closed as OT.

We do not provide CSS support in this forum.

Try asking at the theme author’s GitHub repo: Issues · mavidser/hugo-rocinante · GitHub