adaptivetheme-8.x-3.x-dev/at_core/templates/content-edit/node-edit-form.html.twig

{#
/**
 * @file
 * Theme override for a node edit form.
 *
 * Two column template for the node add/edit form. The clearfix is for backwards
 * compatibility with early sub-themes that did not use flexbox.
 *
 * 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 at_core_form_node_form_alter()
 */
#}
<div data-at-responsive-columns>
  <div class="layout-region">
    <h1 class="page__title h2">{{ title }}</h1>
  </div>
  <div class="layout-node-form clearfix is-responsive__layout">
    <div class="layout-region layout-region-node-main is-responsive__column">
      <div class="layout-region__inner layout-region-node-main__inner">
       {{ form|without('advanced', 'actions') }}
      </div>
    </div>
    <div class="layout-region layout-region-node-secondary is-responsive__column">
      <div class="layout-region__inner layout-region-node-secondary__inner">
        {{ form.advanced }}
      </div>
    </div>
  </div>
</div>
<div class="layout-node-form-footer clearfix">
  <div class="layout-region layout-region-node-footer">
    <div class="layout-region__inner layout-region-node-footer__inner">
      {{ form.actions }}
    </div>
  </div>
</div>