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---
title: backface-visibility
slug: Web/CSS/backface-visibility
translation_of: Web/CSS/backface-visibility
---
<div>{{CSSRef}}{{SeeCompatTable}}</div>
<p><a href="/en-US/docs/Web/CSS">CSS</a> 属性 <strong><code>backface-visibility</code></strong> 指定当元素背面朝向观察者时是否可见。</p>
<div>{{EmbedInteractiveExample("pages/css/backface-visibility.html")}}</div>
<p>元素的背面是其正面的镜像。虽然在 2D 中不可见，但是当变换导致元素在 3D 空间中旋转时，背面可以变得可见。 （此属性对 2D 变换没有影响，它没有透视。）</p>
<h2 id="语法">语法</h2>
<pre class="brush:css no-line-numbers">/* Keyword values */
backface-visibility: visible;
backface-visibility: hidden;
/* Global values */
backface-visibility: inherit;
backface-visibility: initial;
backface-visibility: unset;</pre>
<p><code>backface-visibility</code> 属性可以指定为下面列出的值</p>
<h3 id="值">值</h3>
<dl>
<dt><code>visible</code></dt>
<dd>背面朝向用户时可见。</dd>
<dt><code>hidden</code></dt>
<dd>背面朝向用户时不可见。</dd>
</dl>
<h3 id="正式语法">正式语法</h3>
{{csssyntax}}
<h2 id="举例">举例</h2>
<p>这个示例展示了一个拥有透明表面的立方体。</p>
<h3 id="HTML">HTML</h3>
<pre class="brush: html"><table>
<tr>
<th><code>backface-visibility: visible;</code></th>
<th><code>backface-visibility: hidden;</code></th>
</tr>
<tr>
<td>
<div class="container">
<div class="cube showbf">
<div class="face front">1</div>
<div class="face back">2</div>
<div class="face right">3</div>
<div class="face left">4</div>
<div class="face top">5</div>
<div class="face bottom">6</div>
</div>
</div>
<p>
Since all faces are partially transparent,
the back faces (2, 4, 5) are visible
through the front faces (1, 3, 6).
</p>
</td>
<td>
<div class="container">
<div class="cube hidebf">
<div class="face front">1</div>
<div class="face back">2</div>
<div class="face right">3</div>
<div class="face left">4</div>
<div class="face top">5</div>
<div class="face bottom">6</div>
</div>
</div>
<p>
The three back faces (2, 4, 5) are
hidden.
</p>
</td>
</tr>
</table></pre>
<h3 id="CSS">CSS</h3>
<pre class="brush: css">/* Classes that will show or hide the
three back faces of the "cube" */
.showbf div {
backface-visibility: visible;
}
.hidebf div {
backface-visibility: hidden;
}
/* Define the container div, the cube div, and a generic face */
.container {
width: 150px;
height: 150px;
margin: 75px 0 0 75px;
border: none;
}
.cube {
width: 100%;
height: 100%;
perspective: 550px;
perspective-origin: 150% 150%;
transform-style: preserve-3d;
}
.face {
display: block;
position: absolute;
width: 100px;
height: 100px;
border: none;
line-height: 100px;
font-family: sans-serif;
font-size: 60px;
color: white;
text-align: center;
}
/* Define each face based on direction */
.front {
background: rgba(0, 0, 0, 0.3);
transform: translateZ(50px);
}
.back {
background: rgba(0, 255, 0, 1);
color: black;
transform: rotateY(180deg) translateZ(50px);
}
.right {
background: rgba(196, 0, 0, 0.7);
transform: rotateY(90deg) translateZ(50px);
}
.left {
background: rgba(0, 0, 196, 0.7);
transform: rotateY(-90deg) translateZ(50px);
}
.top {
background: rgba(196, 196, 0, 0.7);
transform: rotateX(90deg) translateZ(50px);
}
.bottom {
background: rgba(196, 0, 196, 0.7);
transform: rotateX(-90deg) translateZ(50px);
}
/* Make the table a little nicer */
th, p, td {
background-color: #EEEEEE;
margin: 0px;
padding: 6px;
font-family: sans-serif;
text-align: left;
}</pre>
<h3 id="结果">结果</h3>
<p>{{EmbedLiveSample('Example', '100%', 360)}}</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('CSS Transforms 2', '#propdef-backface-visibility', 'backface-visibility')}}</td>
<td>{{Spec2('CSS Transforms 2')}}</td>
<td>Initial definition.</td>
</tr>
</tbody>
</table>
<p>{{cssinfo}}</p>
<h2 id="浏览器兼容性">浏览器兼容性</h2>
<p>{{Compat("css.properties.backface-visibility")}}</p>
<h2 id="相关连接">相关连接</h2>
<ul>
<li><a href="/en-US/docs/Web/CSS/CSS_Transforms/Using_CSS_transforms">Using CSS transforms</a></li>
</ul>
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