---
title: Window.pageYOffset
slug: Web/API/Window/pageYOffset
tags:
  - API
  - CSSOM
translation_of: Web/API/Window/pageYOffset
---
<div>{{ APIRef("CSSOM View") }}</div>

<p>只读属性<code>pageYOffset</code>是 <code><a href="/en-US/docs/Web/API/Window/scrollY">scrollY</a> </code>的别名。</p>

<h2 id="Specification" name="Specification">规范</h2>

<table class="standard-table">
 <thead>
  <tr>
   <th scope="col">Specification</th>
   <th scope="col">Status</th>
   <th scope="col">Comment</th>
  </tr>
 </thead>
 <tbody>
  <tr>
   <td>{{ SpecName('CSSOM View', '#dom-window-pageyoffset', 'window.pageYOffset') }}</td>
   <td>{{ Spec2('CSSOM View') }}</td>
   <td> </td>
  </tr>
 </tbody>
</table>

<h2 id="浏览器支持">浏览器支持</h2>

{{Compat("api.Window.pageYOffset")}}

<h2 id="See_also" name="See_also">相关链接</h2>

<ul>
 <li><a href="/en-US/docs/Web/API/Window/pageXOffset"><code>window.pageXOffset</code></a></li>
</ul>