add responsive flex container

chucks-responsive-flex-container/src/block.json

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+{
+	"$schema": "https://schemas.wp.org/trunk/block.json",
+	"apiVersion": 3,
+	"name": "create-block/chucks-responsive-flex-container",
+	"version": "0.1.0",
+	"title": "Chucks Responsive Flex Container",
+	"category": "widgets",
+	"icon": "columns",
+	"description": "Example block scaffolded with Create Block tool.",
+	"supports": {
+		"html": false,
+		"align": ["center", "wide", "full"]
+	},
+	"textdomain": "chucks-responsive-flex-container",
+	"editorScript": "file:./index.js",
+	"editorStyle": "file:./index.css",
+	"style": "file:./style-index.css"
+}

chucks-responsive-flex-container/src/edit.js

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+/**
+ * Retrieves the translation of text.
+ *
+ * @see https://developer.wordpress.org/block-editor/reference-guides/packages/packages-i18n/
+ */
+import { __ } from '@wordpress/i18n';
+
+/**
+ * React hook that is used to mark the block wrapper element.
+ * It provides all the necessary props like the class name.
+ *
+ * @see https://developer.wordpress.org/block-editor/reference-guides/packages/packages-block-editor/#useblockprops
+ */
+import { useBlockProps, InnerBlocks } from '@wordpress/block-editor';
+
+/**
+ * Lets webpack process CSS, SASS or SCSS files referenced in JavaScript files.
+ * Those files can contain any CSS code that gets applied to the editor.
+ *
+ * @see https://www.npmjs.com/package/@wordpress/scripts#using-css
+ */
+import './editor.scss';
+
+/**
+ * The edit function describes the structure of your block in the context of the
+ * editor. This represents what the editor will render when the block is used.
+ *
+ * @see https://developer.wordpress.org/block-editor/reference-guides/block-api/block-edit-save/#edit
+ *
+ * @return {WPElement} Element to render.
+ */
+export default function Edit() {
+	return (
+		<div { ...useBlockProps() }>
+			<InnerBlocks orientation="horizontal" />
+		</div>
+	);
+}

chucks-responsive-flex-container/src/editor.scss

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+/**
+ * The following styles get applied inside the editor only.
+ *
+ * Replace them with your own styles or remove the file completely.
+ */
+
+.wp-block-create-block-chucks-responsive-flex-container {
+	border: 1px dotted #333;
+}

chucks-responsive-flex-container/src/index.js

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+/**
+ * Registers a new block provided a unique name and an object defining its behavior.
+ *
+ * @see https://developer.wordpress.org/block-editor/reference-guides/block-api/block-registration/
+ */
+import { registerBlockType } from '@wordpress/blocks';
+
+/**
+ * Lets webpack process CSS, SASS or SCSS files referenced in JavaScript files.
+ * All files containing `style` keyword are bundled together. The code used
+ * gets applied both to the front of your site and to the editor.
+ *
+ * @see https://www.npmjs.com/package/@wordpress/scripts#using-css
+ */
+import './style.scss';
+
+/**
+ * Internal dependencies
+ */
+import Edit from './edit';
+import save from './save';
+import metadata from './block.json';
+
+/**
+ * Every block starts by registering a new block type definition.
+ *
+ * @see https://developer.wordpress.org/block-editor/reference-guides/block-api/block-registration/
+ */
+registerBlockType( metadata.name, {
+	/**
+	 * @see ./edit.js
+	 */
+	edit: Edit,
+
+	/**
+	 * @see ./save.js
+	 */
+	save,
+} );

chucks-responsive-flex-container/src/save.js

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+/**
+ * React hook that is used to mark the block wrapper element.
+ * It provides all the necessary props like the class name.
+ *
+ * @see https://developer.wordpress.org/block-editor/reference-guides/packages/packages-block-editor/#useblockprops
+ */
+import { useBlockProps, InnerBlocks } from '@wordpress/block-editor';
+
+/**
+ * The save function defines the way in which the different attributes should
+ * be combined into the final markup, which is then serialized by the block
+ * editor into `post_content`.
+ *
+ * @see https://developer.wordpress.org/block-editor/reference-guides/block-api/block-edit-save/#save
+ *
+ * @return {WPElement} Element to render.
+ */
+export default function save() {
+	return (
+		<div { ...useBlockProps.save() }>
+			<InnerBlocks.Content orientation="horizontal" />
+		</div>
+	);
+}

chucks-responsive-flex-container/src/style.scss

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+/**
+ * The following styles get applied both on the front of your site
+ * and in the editor.
+ *
+ * Replace them with your own styles or remove the file completely.
+ */
+
+.wp-block-create-block-chucks-responsive-flex-container  {
+	padding: 1em;
+	display: flex;
+	// align-items: stretch;
+	// justify-content: stretch;
+	flex-wrap: wrap;
+	gap: 1em;
+}
+
+.wp-block-create-block-chucks-responsive-flex-container .block-editor-block-list__layout {
+	display: flex;
+	flex-wrap: wrap;
+	gap: 1em;
+}