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a-portal

A reference page.

This example renders a div with data-portal in the body.

Portal

The a-portal element is used to render elements (its children) in a different location in the DOM. Most frameworks have their own primitives for this. Vue has Teleports, React has createPortal and Solid as well calls it Portal.

Example

<a-portal>
  <div>
    Content rendered over the page
  </div>
</a-portal>