root-8.x-1.x-dev/templates/node/node-edit-form.html.twig

{#
/**
 * @file
 * Theme override for a node edit form.
 *
 * Two column template for the node add/edit form.
 *
 * This template will be used when a node edit form specifies 'node_edit_form'
 * as its #theme callback.  Otherwise, by default, node add/edit forms will be
 * themed by form.html.twig.
 *
 * Available variables:
 * - form: The node add/edit form.
 *
 * @see claro_form_node_form_alter()
 */
#}
{{ attach_library('root/content-form') }}
<div class="layout-node-form clearfix">
	<div class="layout-region layout-region-node-main content-form__main">
		{{ form|without('advanced', 'actions','root_actions') }}
	</div>
	<div class="layout-region layout-region-node-secondary content-form__advanced">
		{{ form.advanced }}
	</div>
	<div class="layout-region layout-region-node-footer content-form__actions">
		<div class="layout-region-node-footer__content">
			{{ form.root_actions }}
		</div>
	</div>
</div>

<button class="content-form__advanced-toggle" data-toggle-advanced-sidebar></button>