Function isOffsetContainer

app/src/static/js/react-bootstrap.js:3198–3206

(element)

}

function isOffsetContainer(element) {
  var nodeName = element.nodeName;

  if (nodeName === 'BODY') {
    return false;
  }

  return nodeName === 'HTML' || getOffsetParent(element.firstElementChild) === element;
}
/**
 * Finds the root node (document, shadowDOM root) of the given element
 * @method