---
title: text-decoration
slug: Web/CSS/text-decoration
tags:
  - 文本修饰
translation_of: Web/CSS/text-decoration
---
<div>{{ CSSRef() }}</div>

<h2 id="Summary" name="Summary">简介</h2>

<p>{{EmbedInteractiveExample("pages/css/text-decoration.html")}}</p>

<p><code>text-decoration</code> 这个 CSS 属性是用于设置文本的修饰线外观的（下划线、上划线、贯穿线/删除线  或 闪烁）它是 {{cssxref("text-decoration-line")}}, {{cssxref("text-decoration-color")}}, {{cssxref("text-decoration-style")}}, 和新出现的 {{cssxref("text-decoration-thickness")}} 属性的缩写。</p>

<p>文本修饰属性会延伸到子元素。这意味着如果祖先元素指定了文本修饰属性，子元素则不能将其删除。例如，在如下标记中<code> &lt;p&gt;This text has &lt;em&gt;some emphasized words&lt;/em&gt; in it.&lt;/p&gt;，应用样式</code><code>p { text-decoration: underline }</code> 会对整个段落添加下划线，此时再添加样式 <code>em { text-decoration: none }</code> 则不会引起任何改变，整个段落仍然有下划线修饰。然而，新加样式 <code>em { text-decoration: overline }</code> 则会在&lt;em&gt;标记的文字上再添加上这种overline样式。</p>

<h2 id="Syntax" name="Syntax">语法</h2>

<p>text-decoration属性是一种简写属性，并且可以使用普通属性三个值中的任何一个。普通属性如下：{{cssxref("text-decoration-line")}}，{{cssxref("text-decoration-color")}}和{{cssxref("text-decoration-style")}}</p>

<h3 id="值">值</h3>

<dl>
 <dt>{{cssxref("text-decoration-line")}}</dt>
 <dd>文本修饰的位置, 如下划线<code>underline</code>，删除线<code>line-through</code></dd>
 <dt>{{cssxref("text-decoration-color")}}</dt>
 <dd>文本修饰的颜色</dd>
 <dt>{{cssxref("text-decoration-style")}}</dt>
 <dd>文本修饰的样式, 如波浪线<code>wavy</code>实线<code>solid</code>虚线<code>dashed</code></dd>
 <dt>{{cssxref("text-decoration-thickness")}}</dt>
 <dd>文本修饰线的粗细</dd>
</dl>

<h3 id="语法形式">语法形式</h3>

{{csssyntax("text-decoration")}}

<h2 id="示例">示例</h2>

<pre class="brush: html"><code>&lt;p class="under"&gt;This text has a line underneath it.&lt;/p&gt;
&lt;p class="over"&gt;This text has a line over it.&lt;/p&gt;
&lt;p class="line"&gt;This text has a line going through it.&lt;/p&gt;
&lt;p&gt;This &lt;a class="plain" href="#"&gt;link will not be underlined&lt;/a&gt;,
    as links generally are by default. Be careful when removing
    the text decoration on anchors since users often depend on
    the underline to denote hyperlinks.&lt;/p&gt;
&lt;p class="underover"&gt;This text has lines above &lt;em&gt;and&lt;/em&gt; below it.&lt;/p&gt;
&lt;p class="blink"&gt;This text might blink for you,
    depending on the browser you use.&lt;/p&gt;</code></pre>

<pre class="brush: css"><code>.under {
  text-decoration: underline red;
}

.over {
  text-decoration: wavy overline lime;
}

.line {
  text-decoration: line-through;
}

.plain {
  text-decoration: none;
}

.underover {
  text-decoration: dashed underline overline;
}

.blink {
  text-decoration: blink;
}</code>
</pre>

<h3 id="结果">结果</h3>

<p>{{EmbedLiveSample('示例','auto','280')}}</p>

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

<table class="standard-table" style="height: 225px; width: 1157px;">
 <thead>
  <tr>
   <th scope="col">规范</th>
   <th scope="col">状态值</th>
   <th scope="col">注解</th>
  </tr>
 </thead>
 <tbody>
  <tr>
   <td>{{SpecName('CSS4 Text Decoration')}}</td>
   <td>{{Spec2('CSS4 Text Decoration')}}</td>
   <td>增加了 {{cssxref("text-decoration-thickness")}}; 注意这个属性还不是正式的，还没有明确。</td>
  </tr>
  <tr>
   <td>{{ SpecName('CSS3 Text Decoration', '#text-decoration-property', 'text-decoration') }}</td>
   <td>{{ Spec2('CSS3 Text Decoration') }}</td>
   <td>转换为简写属性。支持{{ cssxref('text-decoration-style') }}值</td>
  </tr>
  <tr>
   <td>{{ SpecName('CSS2.1', 'text.html#lining-striking-props', 'text-decoration') }}</td>
   <td>{{ Spec2('CSS2.1') }}</td>
   <td>没有显著变化</td>
  </tr>
  <tr>
   <td>{{ SpecName('CSS1', '#text-decoration', 'text-decoration') }}</td>
   <td>{{ Spec2('CSS1') }}</td>
   <td>
    <p>最初的规范</p>
   </td>
  </tr>
 </tbody>
</table>

<p id="Browser_compatibility">{{cssinfo}}</p>

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

<p>{{Compat("css.properties.text-decoration")}}</p>

<h2 id="参见">参见</h2>

<ul>
 <li>The individual text-decoration properties are {{cssxref("text-decoration-line")}}, {{cssxref("text-decoration-color")}}, and {{cssxref("text-decoration-style")}}.</li>
 <li>The {{cssxref("list-style")}} attribute controls the appearance of items in HTML {{HTMLElement("ol")}} and {{HTMLElement("ul")}} lists.</li>
</ul>