node-add.css in Drupal 8

/*
 * DO NOT EDIT THIS FILE.
 * See the following change record for more information,
 * https://www.drupal.org/node/2815083
 * @preserve
 */

/**
 * Layout overrides for node add/edit form.
 */

.layout-region-node-footer__content {
  margin-top: 1.5em;
}

/**
 * Widescreen
 *
 * Both of the following media queries must *exactly* match what is in
 * node.module.css. This is rather crazy.
 *
 * @todo Figure out how to reduce media query duplication across files
 *       and modules. Layout styles only allowed in themes?
 */

@media
  screen and (min-width: 780px), (orientation: landscape) and (min-device-height: 780px) {
  .layout-region-node-footer__content {
    margin-top: 0.5em;
  }
}

/* Push sidebar down to horizontal align with form section */

.layout-region-node-secondary {
  margin-top: 1.5rem;
}