chromium/third_party/blink/renderer/core/dom/non_document_type_child_node.idl

// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// https://dom.spec.whatwg.org/#interface-nondocumenttypechildnode
interface mixin NonDocumentTypeChildNode {
  [PerWorldBindings] readonly attribute Element? previousElementSibling;
  [PerWorldBindings] readonly attribute Element? nextElementSibling;
};