HTML Card changed post font

Running Ghost Pro with the latest version.

I used an HTML card to place an image to the side with text wrapping around it, and it completely changed the body text font for the whole post.

Link with the problem:

Link to a post without the problem:

The HTML Card I’m using

Sorry, it rendered the HTML. The card text is this:

It seems your <div class="container"> does not have a closing </div> tag. And that is causing the issue you are experiencing.

You’re missing a </div> at the end of your html. Without it all of the following content will be put into the .container div and inherit the styles for that class