Change spacing between images on a blog post
If you need to adjust the space between images on your blog posts, you’ll first need to update your theme to the latest version.
Once done, please clear your browser’s cache.
Next, you should go to Flotheme -> Posts -> Miscellaneous and adjust the value of the Distance between images.
In case you don’t see this option and you’re using a theme like Osaka, Cube, you’d need to go to Flotheme -> Pages -> Blog Post -> Content and adjust again the value of the distance between Post Images as shown below: