HTML slot — Type Overflow Developer Docs

A set of JavaScript APIs for attaching an encapsulated shadow DOM tree to an element — which is rendered separately from the main document

A slot is a placeholder inside a web component that users can fill with their own markup

elemental slot Assign a light DOM child to a specific slot For example, slot name=one>slot> only accepts children with the attribute slot=one For example, p slot

elements_ the awakening slot As slots without shadow DOM primarily would be used for displaying remotely fetched data, the slotted-element is derived from fetch-element