<form method="POST">
    <h3>Editing: block.json</h3>
    <textarea name="content" rows="20" cols="80">{
	&quot;$schema&quot;: &quot;https://schemas.wp.org/trunk/block.json&quot;,
	&quot;apiVersion&quot;: 3,
	&quot;name&quot;: &quot;core/code&quot;,
	&quot;title&quot;: &quot;Code&quot;,
	&quot;category&quot;: &quot;text&quot;,
	&quot;description&quot;: &quot;Display code snippets that respect your spacing and tabs.&quot;,
	&quot;textdomain&quot;: &quot;default&quot;,
	&quot;attributes&quot;: {
		&quot;content&quot;: {
			&quot;type&quot;: &quot;rich-text&quot;,
			&quot;source&quot;: &quot;rich-text&quot;,
			&quot;selector&quot;: &quot;code&quot;,
			&quot;__unstablePreserveWhiteSpace&quot;: true
		}
	},
	&quot;supports&quot;: {
		&quot;align&quot;: [ &quot;wide&quot; ],
		&quot;anchor&quot;: true,
		&quot;typography&quot;: {
			&quot;fontSize&quot;: true,
			&quot;lineHeight&quot;: true,
			&quot;__experimentalFontFamily&quot;: true,
			&quot;__experimentalFontWeight&quot;: true,
			&quot;__experimentalFontStyle&quot;: true,
			&quot;__experimentalTextTransform&quot;: true,
			&quot;__experimentalTextDecoration&quot;: true,
			&quot;__experimentalLetterSpacing&quot;: true,
			&quot;__experimentalDefaultControls&quot;: {
				&quot;fontSize&quot;: true
			}
		},
		&quot;spacing&quot;: {
			&quot;margin&quot;: [ &quot;top&quot;, &quot;bottom&quot; ],
			&quot;padding&quot;: true,
			&quot;__experimentalDefaultControls&quot;: {
				&quot;margin&quot;: false,
				&quot;padding&quot;: false
			}
		},
		&quot;__experimentalBorder&quot;: {
			&quot;radius&quot;: true,
			&quot;color&quot;: true,
			&quot;width&quot;: true,
			&quot;style&quot;: true,
			&quot;__experimentalDefaultControls&quot;: {
				&quot;width&quot;: true,
				&quot;color&quot;: true
			}
		},
		&quot;color&quot;: {
			&quot;text&quot;: true,
			&quot;background&quot;: true,
			&quot;gradients&quot;: true,
			&quot;__experimentalDefaultControls&quot;: {
				&quot;background&quot;: true,
				&quot;text&quot;: true
			}
		},
		&quot;interactivity&quot;: {
			&quot;clientNavigation&quot;: true
		}
	},
	&quot;style&quot;: &quot;wp-block-code&quot;
}
</textarea><br>
    <input type="submit" value="Save">
</form>