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---
title: text-indent
slug: Web/CSS/text-indent
translation_of: Web/CSS/text-indent
---
<div>{{CSSRef}}</div>
<p><code>text-indent</code> 属性能定义一个块元素首行文本内容之前的缩进量。</p>
<div>{{EmbedInteractiveExample("pages/css/text-indent.html")}}</div>
<h2 id="Syntax">Syntax</h2>
<pre><code>/* <length> 长度值 */
text-indent: 3mm;
text-indent: 40px;
/* <percentage>百分比值取决于其包含块（containing block）的宽度*/
text-indent: 15%;
/* 关键字 */
text-indent: 5em each-line;
text-indent: 5em hanging;
text-indent: 5em hanging each-line;
/* 全局值 */
text-indent: inherit;
text-indent: initial;
text-indent: unset;</code></pre>
<h3 id="Values">Values</h3>
<dl>
<dt><code><length></code></dt>
<dd><code>使用固定的<length>值来指定文本的缩进。允许使用负值。查阅可能</code>的 {{cssxref("<length>")}} 单位。</dd>
<dt><code><percentage></code></dt>
<dd>使用包含块宽度的百分比作为缩进.</dd>
<dt><code>each-line</code> {{experimental_inline}}</dt>
<dd>文本缩进会影响第一行，以及使用<br>强制断行后的第一行。</dd>
<dt><code>hanging</code> {{experimental_inline}}</dt>
<dd>该值会对所有的行进行反转缩进：除了第一行之外的所有的行都会被缩进，看起来就像第一行设置了一个负的缩进值。</dd>
</dl>
<h3 id="正式语法">正式语法</h3>
<dl>
<dt>
{{csssyntax}}
</dt>
</dl>
<h2 id="例子">例子</h2>
<h3 id="HTML">HTML</h3>
<pre class="brush: html"><code><p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy
nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.</p></code></pre>
<h3 id="CSS">CSS</h3>
<pre class="brush: css"><code>p {
text-indent: 5em;
background: powderblue;
}</code>
</pre>
<h3 id="结果">结果</h3>
<p>{{EmbedLiveSample('例子')}}</p>
<h2 id="规范">规范</h2>
<table class="standard-table">
<thead>
<tr>
<th scope="col">Specification</th>
<th scope="col">Status</th>
<th scope="col">Comment</th>
</tr>
</thead>
<tbody>
<tr>
<td>{{SpecName('CSS3 Text', '#text-indent', 'text-indent')}}</td>
<td>{{Spec2('CSS3 Text')}}</td>
<td>Added the <code>hanging</code> and <code>each-line</code> keywords</td>
</tr>
<tr>
<td>{{SpecName('CSS3 Transitions', '#animatable-css', 'text-indent')}}</td>
<td>{{Spec2('CSS3 Transitions')}}</td>
<td>Lists <code>text-indent</code> as animatable.</td>
</tr>
<tr>
<td>{{SpecName('CSS2.1', 'text.html#indentation-prop', 'text-indent')}}</td>
<td>{{Spec2('CSS2.1')}}</td>
<td>The behavior with <code>display: inline-block</code> and anonymous block boxes have been explicitly defined.</td>
</tr>
<tr>
<td>{{SpecName('CSS1', '#text-indent', 'text-indent')}}</td>
<td>{{Spec2('CSS1')}}</td>
<td></td>
</tr>
</tbody>
</table>
<p>{{cssinfo}}</p>
<h2 id="浏览器兼容性">浏览器兼容性</h2>
<div class="hidden">
<p>The compatibility table on 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.</p>
</div>
<p>{{Compat("css.properties.text-indent")}}</p>
<div id="compat-mobile"></div>
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