To make your explanation spot on, you need to add some more text after "figcaption" in the latter two cases. This is the key point: an inline block will auto-wi

To make your explanation spot on, you need to add some more text after "figcaption" in the latter two cases. This is the key point: an inline block will auto-width, by default, to its contents. In this technique, the contents will always be left-aligned, but the container centered.