HTML slot global attribute

BaselineWidely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2020.

Theslotglobal attribute assigns a slot in ashadow DOM shadow tree to an element: An element with aslot attribute is assigned to the slot created by the<slot> element whosename attribute's value matches thatslot attribute's value. You can have multiple elements assigned to the same slot by using the same slot name. Elements without aslot attribute are assigned to the unnamed slot, if one exists.

For examples, see ourUsing templates and slots guide.