Blog images not showing in Blog Post page

I see.

I am a newbie. Where and how do I add the CSS?

https://docs.generatepress.com/article/adding-css/

Thanks, I managed to add in the CSS and it is all great!

Thanks. I tested with another new post and it is exactly what I wanted and definitely a better method compared to the first one.

No problem! Yeah I wasn't thinking straight the first time...