The figure element represents a unit of content, optionally with a caption, that is self-contained and typically referenced as a single unit. Usually this is an image, an illustration, a diagram, or a code snippet that is referenced in the main text.
For further reading:
W3schools: https: https://www.w3schools.com/tags/tag_figure.asp
Tutorial republic: https://www.tutorialrepublic.com/html-reference/html5-figure-tag.php
HTML all tutorials: https://www.youtube.com/watch?v=rRDw0PMAs6s&list=PLaHzrTVniWQWD3a23a7NZPVtZPKPKvQsi
CSS all tutorials: https://www.youtube.com/watch?v=s3rYM8_JqUo&list=PLaHzrTVniWQV8wIMXEx7Y-5RZ6gt7n1bN