Edit file File name : block.json Content :{ "$schema": "https://schemas.wp.org/trunk/block.json", "apiVersion": 3, "name": "core/list-item", "title": "List item", "category": "text", "parent": [ "core/list" ], "allowedBlocks": [ "core/list" ], "description": "Create a list item.", "textdomain": "default", "attributes": { "placeholder": { "type": "string" }, "content": { "type": "rich-text", "source": "rich-text", "selector": "li", "__experimentalRole": "content" } }, "supports": { "className": false, "__experimentalSelector": ".wp-block-list > li", "splitting": true, "spacing": { "margin": true, "padding": true, "__experimentalDefaultControls": { "margin": false, "padding": false } }, "typography": { "fontSize": true, "lineHeight": true, "__experimentalFontFamily": true, "__experimentalFontWeight": true, "__experimentalFontStyle": true, "__experimentalTextTransform": true, "__experimentalTextDecoration": true, "__experimentalLetterSpacing": true, "__experimentalDefaultControls": { "fontSize": true } }, "interactivity": { "clientNavigation": true } } } Save