---
title: resize
slug: Web/CSS/resize
tags:
  - resize
  - 调整大小
translation_of: Web/CSS/resize
---
<div>{{CSSRef}}</div>

<h2 id="概述">概述</h2>

<p> <strong><code>resize</code></strong> CSS 属性允许你控制一个元素的可调整大小性。</p>

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

<h2 id="语法">语法</h2>

<pre class="brush: css">/* Keyword values */
resize: none;
resize: both;
resize: horizontal;
resize: vertical;
resize: block;
resize: inline;

/* Global values */
resize: inherit;
resize: initial;
resize: unset;
</pre>

<h3 id="取值">取值</h3>

<dl>
 <dt><code>none</code></dt>
 <dd>元素不能被用户缩放。</dd>
 <dt><code>both</code></dt>
 <dd>允许用户在水平和垂直方向上调整元素的大小。</dd>
 <dt><code>horizontal</code></dt>
 <dd>允许用户在水平方向上调整元素的大小。</dd>
 <dt><code>vertical</code></dt>
 <dd>允许用户在垂直方向上调整元素的大小。</dd>
 <dt><code>block</code> {{experimental_inline}}</dt>
 <dd>Depending on the {{cssxref("writing-mode")}} and {{cssxref("direction")}} value, the element displays a mechanism for allowing the user to resize the element either horizontally or vertically in block direction.</dd>
 <dt><code>inline</code> {{experimental_inline}}</dt>
 <dd>Depending on the {{cssxref("writing-mode")}} and {{cssxref("direction")}} value, the element displays a mechanism for allowing the user to resize the element either horizontally or vertically in inline direction.</dd>
</dl>

<div class="note"><strong>Note:</strong> 如果一个block元素的 {{cssxref("overflow")}} 属性被设置成了<code>visible</code>，那么<code>resize</code>属性对该元素无效。</div>

<h3 id="标准语法">标准语法</h3>

{{csssyntax}}

<h2 id="例子">例子</h2>

<h3 id="Disabling_resizability_of_textareas">Disabling resizability of textareas</h3>

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

<p>{{HTMLElement("textarea")}} 元素在{{gecko("2.0")}} (Firefox 4)中默认是可以进行缩放的. 你可以通过下面的CSS代码来重写这种行为：</p>

<pre class="brush: css">textarea.example {
  resize: none; /* disables resizability */
}
</pre>

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

<pre class="brush: html">&lt;textarea class="example"&gt;Type some text here.&lt;/textarea&gt;</pre>

<h4 id="Result">Result</h4>

<p>{{EmbedLiveSample("Disabling_resizability_of_textareas","200","100")}}</p>

<h3 id="Using_resize_with_arbitrary_elements">Using resize with arbitrary elements</h3>

<p>You can use the resize property to make any element resizable. In the example below, a resizable {{HTMLElement("div")}} box contains a resizable paragraph ({{HTMLElement("p")}} element):</p>

<h4 id="CSS_2">CSS</h4>

<pre class="brush: css">.resizable {
  resize: both;
  overflow: scroll;
  border: 1px solid black;
}

div {
  height: 300px;
  width: 300px;
}

p {
  height: 200px;
  width: 200px;
}
</pre>

<h4 id="HTML_2">HTML</h4>

<pre class="brush: html">&lt;div class="resizable"&gt;
  &lt;p class="resizable"&gt;
    This paragraph is resizable, because the CSS resize property is set to 'both' on this
    element.
  &lt;/p&gt;
&lt;/div&gt;
</pre>

<h4 id="Result_2">Result</h4>

<p>{{EmbedLiveSample("Using_resize_with_arbitrary_elements","450","450")}}</p>

<h2 id="Specifications">Specifications</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('CSS Logical Properties', '#resize', 'resize')}}</td>
   <td>{{Spec2('CSS Logical Properties')}}</td>
   <td>Adds the values <code>block</code> and <code>inline</code>.</td>
  </tr>
  <tr>
   <td>{{SpecName('CSS3 Basic UI', '#resize', 'resize')}}</td>
   <td>{{Spec2('CSS3 Basic UI')}}</td>
   <td>Initial definition</td>
  </tr>
 </tbody>
</table>

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

{{Compat("css.properties.resize")}}

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

<ul>
 <li>{{HTMLElement("textarea")}}</li>
</ul>