How to make email campaign mimic blog post exactly?

So I'm hosting a blog in a part of my website. When I try to do the "email campaign" to turn that into an email template to send out, it looks terrible! it just takes two pictures from the blog, makes them huge and drops all the content.

If I try to edit the campaign draft myself, it's really difficult to get it to do what I want like changing the size of the font for a portion of the email campaign. Something like substack just lets me send the blog exactly how it looks in the browser into someone's email. Is there anyways to do that? My blog has some transitions and stuff but that, of course, doesn't need to be in the email.