---
title: background-clip
slug: Web/CSS/background-clip
tags:
  - CSS
  - CSS Background
  - CSS Property
  - Clip
  - Reference
translation_of: Web/CSS/background-clip
---
<div>{{CSSRef}}</div>

<p><code>background-clip</code>  设置元素的背景（背景图片或颜色）是否延伸到边框、内边距盒子、内容盒子下面。</p>

<div>{{EmbedInteractiveExample("pages/css/background-clip.html")}}</div>

<p class="hidden">此交互样例的源代码被储存在GitHub库中.如果你想要对此交互样例工程有代码贡献,请点击 <a href="https://github.com/mdn/interactive-examples">https://github.com/mdn/interactive-examples</a>并向我们发送拉取请求</p>

<p>如果没有设置背景图片（{{cssxref("background-image")}}）或背景颜色（{{cssxref("background-color")}}），那么这个属性只有在边框（ {{cssxref("border")}}）被设置为非固实（soild）、透明或半透明时才能看到视觉效果（与 {{cssxref("border-style")}} 或 {{cssxref("border-image")}} 有关），否则，本属性产生的样式变化会被边框覆盖。</p>

<h2 id="语法">语法</h2>

<pre class="brush:css no-line-numbers notranslate">/* Keyword values */
background-clip: border-box;
background-clip: padding-box;
background-clip: content-box;
background-clip: text;

/* Global values */
background-clip: inherit;
background-clip: initial;
background-clip: unset;
</pre>

<h3 id="值">值</h3>

<dl>
 <dt><code>border-box</code></dt>
 <dd>背景延伸至边框外沿（但是在边框下层）。</dd>
 <dt><code>padding-box</code></dt>
 <dd>背景延伸至内边距（{{cssxref("padding")}}）外沿。不会绘制到边框处。</dd>
 <dt><code>content-box</code></dt>
 <dd>背景被裁剪至内容区（content box）外沿。</dd>
 <dt><code>text</code> {{experimental_inline}}</dt>
 <dd>背景被裁剪成文字的前景色。</dd>
</dl>

<h3 id="标准语法">标准语法</h3>

{{csssyntax}}

<h2 id="示例">示例</h2>

<h4 id="HTML">HTML</h4>

<pre class="brush: html notranslate">&lt;p class="border-box"&gt;The background extends behind the border.&lt;/p&gt;
&lt;p class="padding-box"&gt;The background extends to the inside edge of the border.&lt;/p&gt;
&lt;p class="content-box"&gt;The background extends only to the edge of the content box.&lt;/p&gt;
&lt;p class="text"&gt;The background is clipped to the foreground text.&lt;/p&gt;
</pre>

<h4 id="CSS">CSS</h4>

<pre class="brush: css notranslate">p {
  border: .8em darkviolet;
  border-style: dotted double;
  margin: 1em 0;
  padding: 1.4em;
  background: linear-gradient(60deg, red, yellow, red, yellow, red);
  font: 900 1.2em sans-serif;
  text-decoration: underline;
}

.border-box { background-clip: border-box; }
.padding-box { background-clip: padding-box; }
.content-box { background-clip: content-box; }

.text {
  background-clip: text;
  -webkit-background-clip: text;
  color: rgba(0,0,0,.2);
}</pre>

<h4 id="结果">结果</h4>

<p>{{EmbedLiveSample('Examples', 600, 580)}}</p>

<h2 id="规范">规范</h2>

<table class="standard-table">
 <thead>
  <tr>
   <th scope="col">规范</th>
   <th scope="col">状态</th>
   <th scope="col">备注</th>
  </tr>
 </thead>
 <tbody>
  <tr>
   <td>{{SpecName('CSS3 Backgrounds', '#the-background-clip', 'background-clip')}}</td>
   <td>{{Spec2('CSS3 Backgrounds')}}</td>
   <td>Initial definition.</td>
  </tr>
  <tr>
   <td>{{SpecName('CSS4 Backgrounds', '#background-clip', 'background-clip')}}</td>
   <td>{{Spec2('CSS4 Backgrounds')}}</td>
   <td>Add <code>text</code> value.</td>
  </tr>
 </tbody>
</table>

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

<h2 id="浏览器兼容性">浏览器兼容性</h2>

<p>{{Compat("css.properties.background-clip")}}</p>

<h2 id="参见">参见</h2>

<ul>
 <li>The {{cssxref("clip-path")}} property creates a clipping region that defines what part of an <em>entire element</em> should be displayed.</li>
 <li>Background properties: {{cssxref("background")}}, {{cssxref("background-color")}}, {{cssxref("background-image")}}</li>
 <li><a href="/en-US/docs/Web/CSS/box_model">Introduction to the CSS box model</a></li>
</ul>