---
title: element.clientTop
slug: Web/API/Element/clientTop
tags:
  - DOM
  - Gecko
  - Gecko DOM Reference
translation_of: Web/API/Element/clientTop
---
<div>
 {{ApiRef}}</div>
<h2 id="Summary" name="Summary">概要</h2>
<p>要素の上ボーダーの幅のピクセル数です。上マージン、及び、上パディングは含みません。<code>clientTop</code> は読込専用です。</p>
<p><a href="/ja/docs/Gecko">Gecko</a> ベースアプリケーションは、 Gecko 1.9 (<a href="/ja/docs/Mozilla/Firefox/Releases/3">Firefox 3</a>、{{Bug("111207")}} で実装) から <code>clientTop</code> をサポートします。このプロパティは、Firefox 2 以前ではサポートされません。</p>
<h2 id="Syntax" name="Syntax">構文</h2>
<pre class="syntaxbox"><var>top</var> = <var>element</var>.clientTop;
</pre>
<h2 id="Example" name="Example">例</h2>
<div id="offsetContainer" style="margin: 26px 0px; background-color: rgb(255, 255, 204); border: 4px dashed black; color: black; position: absolute; left: 260px;">
 <div id="idDiv" style="margin: 24px 29px; border: 24px black solid; padding: 0px 28px; width: 199px; height: 102px; overflow: auto; background-color: white; font-size: 13px!important; font-family: Arial, sans-serif;">
  <p id="PaddingTopLabel" style="text-align: center; font-style: italic; font-weight: bold; font-size: 13px!important; font-family: Arial, sans-serif; margin: 0px;">padding-top</p>
  <p>Gentle, individualistic and very loyal, Birman cats fall between Siamese and Persian in character. If you admire cats that are non aggressive, that enjoy being with humans and tend to be on the quiet side, you may well find that Birman cats are just the felines for you.</p>
  <p><span style="float: right;"><img height="69" src="https://mdn.mozillademos.org/files/143/BirmanCat.jpg" width="129"></span>All Birmans have colorpointed features, dark coloration of the face, ears, legs and tail.</p>
  <p>Cat image and text coming from <a href="http://www.best-cat-art.com/">www.best-cat-art.com</a></p>
  <p id="PaddingBottomLabel" style="text-align: center; font-style: italic; font-weight: bold; font-size: 13px!important; font-family: Arial, sans-serif; margin: 0px;">padding-bottom</p>
 </div>
 <span style="position: absolute; left: -32px; top: 85px; color: blue; font-weight: bold; font-size: 13px!important; font-family: Arial, sans-serif;">Left</span><span style="position: absolute; left: 170px; top: -24px; color: blue; font-weight: bold; font-size: 13px!important; font-family: Arial, sans-serif;">Top</span><span style="position: absolute; left: 370px; top: 85px; color: blue; font-weight: bold; font-size: 13px!important; font-family: Arial, sans-serif;">Right</span><span style="position: absolute; left: 164px; top: 203px; color: blue; font-weight: bold; font-size: 13px!important; font-family: Arial, sans-serif;">Bottom</span><span style="position: absolute; left: 143px; top: 5px; font-style: italic; font-weight: bold; font-size: 13px!important; font-family: Arial, sans-serif;">margin-top</span><span style="position: absolute; left: 138px; top: 175px; font-style: italic; font-weight: bold; font-size: 13px!important; font-family: Arial, sans-serif;">margin-bottom</span><span style="position: absolute; left: 143px; top: 27px; color: white; font-style: italic; font-weight: bold; font-size: 13px!important; font-family: Arial, sans-serif;">border-top</span><span style="position: absolute; left: 138px; top: 153px; color: white; font-style: italic; font-weight: bold; font-size: 13px!important; font-family: Arial, sans-serif;">border-bottom</span><span class="comment">{{mediawiki.external('if IE')}}&gt;&lt;span id="MrgLeft" style="position: absolute; left: 8px; top: 65px; font: bold 13px Arial, sans-serif !important; writing-mode: tb-rl;"&gt;margin-left&lt;/span&gt;&lt;span id="BrdLeft" style="position: absolute; left: 33px; top: 65px; color: white; font: bold 13px Arial, sans-serif !important; writing-mode: tb-rl;"&gt;border-left&lt;/span&gt;&lt;span id="PdgLeft" style="position: absolute; left: 55px; top: 65px; font: bold 13px Arial, sans-serif !important; writing-mode: tb-rl;"&gt;padding-left&lt;/span&gt;&lt;span id="PdgRight" style="position: absolute; left: 275px; top: 60px; color: black; font: bold 13px Arial, sans-serif !important; writing-mode: tb-rl; white-space: nowrap;"&gt;padding-right&lt;/span&gt;&lt;span id="BrdRight" style="position: absolute; left: 310px; top: 65px; color: white; font: bold 13px Arial, sans-serif !important; writing-mode: tb-rl;"&gt;border-right&lt;/span&gt;&lt;span id="MrgRight" style="position: absolute; left: 340px; top: 65px; font: bold 13px Arial, sans-serif !important; writing-mode: tb-rl;"&gt;margin-right&lt;/span&gt;&lt;!{{mediawiki.external('endif')}}</span></div>
<p style="margin-top: 270px;"><img height="302" src="https://mdn.mozillademos.org/files/263/clientTop.png" width="548"></p>
<h2 id="Specification" name="Specification">仕様</h2>
<p>W3C の仕様の一部ではありません。</p>
<h2 id="Notes" name="Notes">注記</h2>
<p><code>clientTop</code> は MS IE DHTML オブジェクトモデルで最初に導入されました。</p>
<h2 id="References" name="References">リファレンス</h2>
<ul>
 <li><a href="http://msdn.microsoft.com/workshop/author/dhtml/reference/properties/clienttop.asp?frame=true">MSDN's clientTop definition</a>（<a href="http://msdn.microsoft.com/library/ja/default.asp?url=/library/ja/jpisdk/dhtml/references/properties/clientTop.asp">日本語版</a>）</li>
 <li><a href="http://msdn.microsoft.com/workshop/author/om/measuring.asp">MSDN's Measuring Element Dimension and Location</a>（<a href="http://msdn.microsoft.com/library/ja/jpisdk/dhtml/measure/measuring.asp?FRAME=true#chp_measuring">日本語版</a>）</li>
</ul>