files/zh-cn/web/css/_doublecolon_-moz-progress-bar/index.html


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---
title: '::-moz-progress-bar'
slug: 'Web/CSS/::-moz-progress-bar'
tags:
  - CSS
  - CSS 伪类
  - 非标准特性
translation_of: 'Web/CSS/::-moz-progress-bar'
---
<div>{{CSSRef}}{{Non-standard_header}}</div>

<p><a href="/en-US/docs/Web/CSS">CSS</a><a href="/en-US/docs/Web/CSS/Pseudo-elements">伪元素</a> <strong><code>::-moz-progress-bar</code></strong> 是{{HTMLElement("progress")}} 元素中，Mozilla独有的特性（<a href="/en-US/docs/Web/CSS/Mozilla_Extensions">Mozilla extension</a>），用于对进度条完成的部分进行选择。</p>

<p>如果你想选择未完成的部分，请直接选择 {{HTMLElement("progress")}} 。</p>

<h2 id="语法">语法</h2>

{{csssyntax}}

<h2 id="例子">例子</h2>

<h3 id="HTML">HTML</h3>

<pre class="brush:html; notranslate">&lt;progress value="30" max="100"&gt;30%&lt;/progress&gt;
&lt;progress max="100"&gt;Indeterminate&lt;/progress&gt;</pre>

<h3 id="CSS">CSS</h3>

<pre class="brush: css notranslate">::-moz-progress-bar {
  background-color: red;
}

/* Force indeterminate bars to have zero width */
:indeterminate::-moz-progress-bar {
  width: 0;
}</pre>

<h3 id="Result">Result</h3>

<p>{{EmbedLiveSample('Examples')}}</p>

<p>上面第一段样式的进度条会如下图所示：</p>

<p><img alt="Custom styled progress bar" class="default internal" src="/@api/deki/files/5387/=redbar.png"></p>

<h2 id="参考">参考</h2>

<ul>
 <li>{{HTMLElement("progress")}}</li>
 <li>{{ cssxref("::-ms-fill") }}</li>
 <li>{{ cssxref("::-webkit-progress-bar") }}</li>
 <li>{{ cssxref("::-webkit-progress-value") }}</li>
 <li>{{ cssxref("::-webkit-progress-inner-element") }}</li>
</ul>