The module allows a site builder to change block level element tags or add classes within the block configurations. It accounts for both content and configuration blocks that are rendered using the block.html.twig template.

• Enable the fences_block module like normal.
• Navigate to block layout e.g(/admin/structure/block).
• Click "Place block" or "Configure" on an existing block under the operations..
• Next change any configurations under the "Fences Block" fieldset; then save.

• Fences