Using the top terminal session, view the container images available.
REPOSITORY TAG IMAGE ID CREATED SIZE localhost/rhel8-httpd latest c12e3720df7b 43 hours ago 499 MB
There is one container available in the local (localhost) repository, rhel8-httpd. If there were multiple updated iterations of the conatiner available, you would use the IMAGE ID to work with those that are not tagged as latest. Also, from this list you are able to see the size, on disk, of the container image.