Block support: __experimentalBorder

This document is part of the WordPress block reference and is intended for developers.

Block supports are a set of options that enables or disables block controls in the editor. Block supports are added to the block’s block.json file during block development (Not to be confused with theme.json which is used in theme development).

Documentation

Last updated January 27, 2023.

Experimental block supports are subject to change and are prefixed with “__experimental”.
This can mean that the feature is new and needs to be tested before it can be considered stable.
It can also mean that there are changes planned or that there are known bugs or difficulties with the implementation.
As a block developer you can use these but know that the specifics of the feature might change.

List all WordPress core blocks that supports border color:
List all WordPress core blocks that supports border width:
List all WordPress core blocks that supports border radius:
List all WordPress core blocks that supports border style:

View blocks per attribute or block support: