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authorPeter Bengtsson <mail@peterbe.com>2020-12-08 14:40:17 -0500
committerPeter Bengtsson <mail@peterbe.com>2020-12-08 14:40:17 -0500
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+---
+title: '::-webkit-progress-value'
+slug: 'Web/CSS/::-webkit-progress-value'
+tags:
+ - CSS
+ - 伪元素
+ - 参考
+ - 非标准
+translation_of: 'Web/CSS/::-webkit-progress-value'
+---
+<div>{{CSSRef}}{{Non-standard_header}}</div>
+
+<div><strong><code>::-webkit-progress-value</code></strong> <a href="/en-US/docs/Web/CSS">CSS</a> <a href="/en-US/docs/Web/CSS/Pseudo-elements">伪元素</a> 代表的是{{HTMLElement("progress")}} 元素中进度条未完成的部分。它是{{cssxref("::-webkit-progress-bar")}} 伪元素的子元素。</div>
+
+<div></div>
+
+<div class="note">
+<p><strong>注意:</strong> 为了使 <code>::-webkit-progress-value</code> 生效, <code>&lt;progress&gt;</code> 元素的{{cssxref("-webkit-appearance")}} 需要设置为 <code>none</code> 。</p>
+</div>
+
+<h2 id="说明">说明</h2>
+
+<p>不属于任何规范。这是WebKit/Blink专有的一个伪元素。</p>
+
+<h2 id="示例">示例</h2>
+
+<h3 id="HTML">HTML</h3>
+
+<pre class="brush: html notranslate">&lt;progress value="10" max="50"&gt;
+</pre>
+
+<h3 id="CSS">CSS</h3>
+
+<pre class="brush: css notranslate">progress {
+  -webkit-appearance: none;
+}
+
+::-webkit-progress-value {
+  background-color: orange;
+}</pre>
+
+<h3 id="Result">Result</h3>
+
+<p>{{EmbedLiveSample("Example", 200, 50)}}</p>
+
+<p>应用了上述样式的进度条如下:</p>
+
+<p><img alt="" src="https://mdn.mozillademos.org/files/13490/progress-value.png" style="height: 60px; width: 249px;"></p>
+
+<h2 id="浏览器兼容性">浏览器兼容性</h2>
+
+
+
+<p>{{Compat("css.selectors.-webkit-progress-value")}}</p>
+
+<h2 id="参见">参见</h2>
+
+<ul>
+ <li>WebKit/Blink使用的用来修改{{HTMLElement("progress")}}元素其他部分样式的伪元素:
+ <ul>
+ <li>{{ cssxref("::-webkit-progress-bar") }}</li>
+ <li>{{ cssxref("::-webkit-progress-inner-element") }}</li>
+ </ul>
+ </li>
+ <li>{{ cssxref("::-moz-progress-bar") }}</li>
+ <li>{{ cssxref("::-ms-fill") }}</li>
+</ul>