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author | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
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committer | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
commit | 33058f2b292b3a581333bdfb21b8f671898c5060 (patch) | |
tree | 51c3e392513ec574331b2d3f85c394445ea803c6 /files/zh-cn/web/css/_doublecolon_cue | |
parent | 8b66d724f7caf0157093fb09cfec8fbd0c6ad50a (diff) | |
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diff --git a/files/zh-cn/web/css/_doublecolon_cue/index.html b/files/zh-cn/web/css/_doublecolon_cue/index.html new file mode 100644 index 0000000000..49610c7abc --- /dev/null +++ b/files/zh-cn/web/css/_doublecolon_cue/index.html @@ -0,0 +1,75 @@ +--- +title: '::cue (:cue)' +slug: 'Web/CSS/::cue' +tags: + - '::cue' + - WebVTT + - cue +translation_of: 'Web/CSS/::cue' +--- +<div>{{CSSRef}}</div> + +<p>:: cue CSS<a href="/en-US/docs/Web/CSS/Pseudo-elements">伪元素</a>匹配所选元素中的<a href="en-US/docs/Web/API/WebVTT_API">WebVTT</a>提示。这可以用于在VTT轨道的媒体中使用字幕和其他线索。</p> + +<p>只有CSS一小部分属性可以与<code> :: cue 伪元素一起使用:</code></p> + +<ul> + <li><code>{{cssxref("color")}}</code></li> + <li><code>{{cssxref("opacity")}}</code></li> + <li><code>{{cssxref("visibility")}}</code></li> + <li><code>{{cssxref("text-decoration")}} and its longhand properties: {{cssxref("text-decoration-line")}}, {{cssxref("text-decoration-color")}}, and {{cssxref("text-decoration-style")}}</code></li> + <li><code>{{cssxref("text-shadow")}}</code></li> + <li><code>{{cssxref("background")}} and its longhand properties: {{Cssxref("background-color")}}, {{cssxref("background-clip")}}, {{Cssxref("background-image")}}, {{cssxref("background-origin")}}, {{Cssxref("background-position")}}, {{Cssxref("background-repeat")}}, {{cssxref("background-size")}}, {{Cssxref("background-attachment")}}, and {{cssxref("background-blend-mode")}}</code></li> + <li><code>{{cssxref("outline")}} and its longhand properties: {{cssxref("outline-color")}}, {{cssxref("outline-style")}}, {{cssxref("outline-width")}}</code></li> + <li><code>{{Cssxref("font")}} and its longhand properties: {{cssxref("font-kerning")}}, {{Cssxref("font-style")}}, {{Cssxref("font-variant")}}, {{cssxref("font-variant-numeric")}}, {{cssxref("font-variant-position")}}, {{cssxref("font-variant-east-asian")}}, {{cssxref("font-variant-caps")}}, {{cssxref("font-variant-alternates")}}, {{cssxref("font-variant-ligatures")}}, {{cssxref("font-synthesis")}}, {{cssxref("font-feature-settings")}}, {{cssxref("font-language-override")}}, {{Cssxref("font-weight")}}, {{Cssxref("font-size")}}, {{cssxref("font-size-adjust")}}, {{cssxref("font-stretch")}}, and {{Cssxref("font-family")}}</code></li> + <li><code>{{cssxref("line-height")}}</code></li> + <li><code>{{cssxref("white-space")}}</code></li> + <li><code>{{cssxref("text-combine-upright")}}</code></li> + <li><code>{{cssxref("ruby-position")}}</code></li> +</ul> + +<p><code>属性应用于整个提示集,就像它们是单个单元一样。唯一的例外是<code>背景及其简写属性可以单独应用于每个提示,以避免创建框并遮盖意外大面积的媒体。 </code></code></p> + +<h2 id="语法"><code><code>语法</code></code></h2> + +<pre class="syntaxbox"><code><code> +{{csssyntax}}</code></code></pre> + +<h2 id="示例"><code><code>示例</code></code></h2> + +<p><code><code>以下CSS设置提示样式,使文本为白色,背景为半透明黑盒。</code></code></p> + +<pre class="brush: css"><code><code> +::cue { + color: #fff; + background-color: rgba(0, 0, 0, 0.6); +}</code></code></pre> + +<h2 id="规范"><code><code>规范</code></code></h2> + +<table class="standard-table"> + <tbody> + <tr> + <th><code><code>规范</code></code></th> + <th><code><code>状态</code></code></th> + <th><code><code>注解 </code></code></th> + </tr> + <tr> + <td><code><code>{{SpecName("WebVTT")}}</code></code></td> + <td><code><code>{{Spec2("WebVTT")}}</code></code></td> + <td><code><code>Initial definition</code></code></td> + </tr> + </tbody> +</table> + +<h2 id="浏览器兼容性"><code><code>浏览器兼容性</code></code></h2> + +<p class="hidden"><code><code>The compatibility table in 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.</code></code></p> + +<p><code><code>{{Compat("css.selectors.cue")}}</code></code></p> + +<h2 id="参考"><code><code>参考</code></code></h2> + +<ul> + <li><code><code><a href="/en-US/docs/Web/API/WebVTT_API">网络视频轨道格式(WebVTT</a></code></code></li> +</ul> |