The first step is to sign in with your Apple ID. Next, go to the app that has the content you want to delete. Finally, tap on the Settings app and then iCloud. You can then select what you want to delete and how long before it disappears from iCloud.
iCloud is a service that stores files on Apple’s servers. As such, you cannot permanently delete anything from iCloud. You can only delete the files locally, and they will still be stored on Apple’s servers.
