---
title: '继承性'
slug: Web/CSS/@property/inherits
tags:
  - CSS
  - Reference
  - Web
  - Property
  - Houdini
---
<div>{{CSSRef}}{{SeeCompatTable}}</div>

<p><strong><code>inherits</code></strong> <a href="/en-US/docs/Web/CSS">CSS</a> 描述符在使用{{cssxref("@property")}} {{cssxref("at-rule")}}时是必需的，它控制由 <code>@property</code>声明注册的自定义属性默认情况下是否会被继承。</p>

<h2 id="Syntax">Syntax（类型描述符）</h2>

<pre class="brush: css no-line-numbers">@property --property-name {
  syntax: '&lt;color&gt;';
  inherits: false;
  initial-value: #c0ffee;
}

@property --property-name {
  syntax: '&lt;color&gt;';
  inherits: true;
  initial-value: #c0ffee;
}
</pre>

<h2 id="Values">取值</h2>

<dl>
  <dt><code>true</code></dt>
  <dd>属性默认继承</dd>
  <dt><code>false</code></dt>
  <dd>属性默认不继承</dd>
</dl>

<h2 id="Formal_definition">规范定义</h2>

<p>{{cssinfo}}</p>

<h2 id="Formal_syntax">标准语法</h2>

<pre class="brush: css">{{csssyntax}}</pre>

<h2 id="Examples">实例</h2>

<p>为 <code>--my-color</code> {{cssxref('--*', '自定义属性')}}添加颜色值类型检测、设置默认值并且设置属性值不允许被继承。</p>

<p>使用 <a href="/en-US/docs/Web/CSS">CSS</a> {{cssxref('@property')}} <a href="/en-US/docs/Web/CSS/At-rule">@规则</a>:</p>

<pre class="brush: css">@property --my-color {
  syntax: '&lt;color&gt;';
  inherits: false;
  initial-value: #c0ffee;
}
</pre>

<p>使用 <a href="/en-US/docs/Web/JavaScript">JavaScript中的</a> {{domxref('CSS.registerProperty')}}函数:</p>

<pre class="brush: js">window.CSS.registerProperty({
  name: '--my-color',
  syntax: '&lt;color&gt;',
  inherits: false,
  initialValue: '#c0ffee',
});
</pre>

<h2 id="Specifications">规范</h2>

<table class="standard-table">
 <tbody>
  <tr>
   <th scope="col">规范</th>
   <th scope="col">状态</th>
   <th scope="col">提议</th>
  </tr>
  <tr>
   <td>{{SpecName('CSS Properties and Values API', '#inherits-descriptor', 'inherits')}}</td>
   <td>{{Spec2('CSS Properties and Values API')}}</td>
   <td>初始定义.</td>
  </tr>
 </tbody>
</table>

<h2 id="Browser_compatibility">浏览器兼容性</h2>

<div class="hidden">The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out <a href="https://github.com/mdn/browser-compat-data">https://github.com/mdn/browser-compat-data</a> and send us a pull request.</div>

<p>{{Compat("css.at-rules.property.inherits")}}</p>

<h2 id="See_also">另见</h2>

<ul>
    <li><a href="/zh-CN/docs/Web/API/CSS_Properties_and_Values_API">CSS属性与值 API</a></li>
    <li><a href="/zh-CN/docs/Web/API/CSS_Painting_API">CSS 绘图 API</a></li>
    <li><a href="/zh-CN/docs/Web/API/CSS_Typed_OM_API">CSS 类型对象模型</a></li>
    <li><a href="/zh-CN/docs/Web/Houdini">CSS Houdini</a></li>
</ul>