I have a custom CSS manager plugin that I use for updating CSS and it seems to be working for most changes. I tried this code and didn’t get anything different. I also tried for the image class: .attachment-blog-thumb wp-post-image an didn’t get anything different. Put height also at 100%.
Yes, I need more help. I have been able to modify captions on my homepage with a CSS manager plugin. The problem is I don’t know how to tell the names of the classes / IDs that I need to change.