Created: 2022-09-14
Peripheral info, links, quotes, ads, etc.
Usually, this is contextual to what is contained in the main content
(for example on a news article page, the sidebar might contain the author's bio, or links to related articles)
but there are also cases where you'll find some recurring elements like a secondary navigation system.
<aside> contains content that is not directly related to the main content but can provide additional information indirectly related to it (glossary entries, author biography, related links, etc.).