featured img css

Hello Christine

We have been using the mon cahier for a couple years now/

I added a post thumbnail to a category page template.

I also changed the sizing in the functions file from the big 640 to something much smaller

I also added a class to make the pic align left on the excerpts (archive -category) page instead of being in the middle.

There is only one problem. The featured img keeps displaying above the post title and to the left.

It should display under the title and to the left of the text of the excerpt.

I must be using the wrong code in the style sheet.

Could you please tell me which line to change/add to the css?

And, I am using a child theme for the category page template and other file changes.

Thank you