---
title: HTMLContentElement.select
slug: Web/API/HTMLContentElement/select
tags:
  - Necesita traducción
translation_of: Web/API/HTMLContentElement/select
---
<p>{{ APIRef("Web Components") }}</p>

<p>The <code><strong>HTMLContentElement.select</strong></code> property reflects the <code>select</code> attribute. It is a {{domxref("DOMString")}} containing a space-separated list of CSS selectors that select the content to insert in place of the &lt;content&gt; element.</p>

<h2 id="Syntax">Syntax</h2>

<pre class="syntaxbox"><em>object</em>.select = "<em>CSSselector</em> <em>CSSselector</em> ...";
</pre>

<h2 id="Specifications" name="Specifications">Example</h2>

<pre class="brush: js">// Select &lt;h1&gt; elements and elements with class="error"
myContentObject.select = "h1 .error";</pre>

<h2 id="Specifications" name="Specifications">Specifications</h2>

<table class="spec-table standard-table">
 <tbody>
  <tr>
   <th scope="col">Specification</th>
   <th scope="col">Status</th>
   <th scope="col">Comment</th>
  </tr>
  <tr>
   <td>{{SpecName('Shadow DOM', '#the-content-element', 'content')}}</td>
   <td>{{Spec2('Shadow DOM')}}</td>
   <td> </td>
  </tr>
 </tbody>
</table>

<h2 id="Browser_compatibility">Browser compatibility</h2>

<p>{{CompatibilityTable}}</p>

<div id="compat-desktop">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Chrome</th>
   <th>Firefox (Gecko)</th>
   <th>Internet Explorer</th>
   <th>Opera</th>
   <th>Safari (WebKit)</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>35</td>
   <td><span style="font-size: 12px; line-height: 18px;">{{CompatGeckoDesktop("28")}}</span> [1]</td>
   <td>{{CompatNo}}</td>
   <td>26</td>
   <td><span style="font-size: 12px; line-height: 18px;">{{CompatNo}}</span></td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Android</th>
   <th>Firefox Mobile (Gecko)</th>
   <th>IE Phone</th>
   <th>Opera Mobile</th>
   <th>Safari Mobile</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>37</td>
   <td>{{CompatGeckoMobile("28")}} [1]</td>
   <td>{{CompatNo}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
  </tr>
 </tbody>
</table>
</div>

<p>[1] If Shadow DOM is not enabled in Firefox, &lt;content&gt; elements will behave like {{domxref("HTMLUnknownElement")}}. Shadow DOM was first implemented in Firefox 28 and is behind a preference, <code>dom.webcomponents.enabled</code>, which is disabled by default.</p>

<h2 id="See_also">See also</h2>

<ul>
 <li><a href="/en-US/docs/Web/API/HTMLContentElement">HTMLContentElement</a></li>
</ul>