Content annotations keep supporting context close to a sentence without placing it directly in the reading flow. Activate the small note marker to reveal its content.
Basic syntax
Add a [+label] reference in ordinary prose, then define the matching note elsewhere in the same article.
Astro renders most of a page ahead of time and hydrates **interactive islands** [+islands] only when they need to become interactive.
[+islands]: An island is an interactive UI component surrounded by static HTML. This keeps the default page lightweight while preserving focused interactivity.Astro renders most of a page ahead of time and hydrates interactive islands only when they need to become interactive.
Rich content
Definitions may contain paragraphs, emphasis, links, lists, and inline code while the surrounding sentence continues normally.
Multiple definitions
Reuse a label to present a short sequence of related notes behind one marker.
Undefined references such as [+missing] remain ordinary text, so an unfinished definition never creates an empty control.
Share Article
Generate a share poster or copy the link to share this article.
Continue reading
Take another route
A consistent pick from other articles
Last updated on , 0 days ago
Some content may be outdated