Resizing the featured image in Solo theme

Hi everyone,

I’m new to Ghost and a non-developer so looking for a simple solution to an esthetic problem I have with the Solo theme (which is great by default already).

I’d like to reduce the size of the featured image on posts and move it just above the beginning of the body.

What I’m trying to achieve is basically this:

But at the moment I’m using an image in a block instead of using the featured image feature to achieve this.

If there is a code injection to do that with the default featured image?

Looking forward to your answers!

Have you had any luck with this? I’m trying to do the same…