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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/perspective-origin | |
parent | 8b66d724f7caf0157093fb09cfec8fbd0c6ad50a (diff) | |
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diff --git a/files/zh-cn/web/css/perspective-origin/index.html b/files/zh-cn/web/css/perspective-origin/index.html new file mode 100644 index 0000000000..14843dc64d --- /dev/null +++ b/files/zh-cn/web/css/perspective-origin/index.html @@ -0,0 +1,382 @@ +--- +title: perspective-origin +slug: Web/CSS/perspective-origin +translation_of: Web/CSS/perspective-origin +--- +<div>{{CSSRef}}</div> + +<p><a href="/en-US/docs/CSS">CSS</a> 属性 <strong><code>perspective-origin</code></strong> 指定了观察者的位置,用作 {{cssxref("perspective")}} 属性的消失点。</p> + +<div>{{EmbedInteractiveExample("pages/css/perspective-origin.html")}}</div> + + + +<h2 id="语法">语法</h2> + +<pre class="brush:css no-line-numbers">/* One-value syntax */ +perspective-origin: x-position; + +/* Two-value syntax */ +perspective-origin: x-position y-position; + +/* When both x-position and y-position are keywords, + the following is also valid */ +perspective-origin: y-position x-position; + +/* Global values */ +perspective-origin: inherit; +perspective-origin: initial; +perspective-origin: unset; +</pre> + +<h3 id="值">值</h3> + +<dl> + <dt><em>x-position</em></dt> + <dd>指定<em>消失点</em>的横坐标,其值有以下形式: + <ul> + <li>{{cssxref("<length-percentage>")}} 长度值或相对于元素宽度的百分比值,可为负值。</li> + <li><code>left</code>, 关键字,0值的简记。</li> + <li><code>center</code>, 关键字,50%的简记。</li> + <li><code>right</code>, 关键字,100%的简记。</li> + </ul> + </dd> + <dt><em>y-position</em></dt> + <dd>指定<em>消失点</em>的纵坐标,其值有以下形式: + <ul> + <li>{{cssxref("<length-percentage>")}} 长度值或相对于元素高度的百分比值,可为负值。</li> + <li><code>top</code>, 关键字,0值的简记。</li> + <li><code>center</code>, 关键字,50%的简记。</li> + <li><code>bottom</code>, 关键字,100%的简记。</li> + </ul> + </dd> +</dl> + +<h3 id="正式语法">正式语法</h3> + +<pre class="syntaxbox">{{csssyntax}}</pre> + +<h2 id="举例">举例</h2> + +<h3 id="修改_perspective_origin">修改 perspective origin</h3> + +<p>这个例子展示了带有常用 <code>perspective-origin</code> 值的立方体。</p> + +<h4 id="结果">结果</h4> + +<p>{{EmbedLiveSample('Changing_the_perspective_origin', '100%', 700)}}</p> + +<h4 id="HTML">HTML</h4> + +<pre class="brush: html"><table> + <tbody> + <tr> + <th> + <code>perspective-origin: top left;</code> + </th> + <th> + <code>perspective-origin: top;</code> + </th> + <th> + <code>perspective-origin: top right;</code> + </th> + </tr> + <tr> + <td> + <div class="container"> + <div class="cube potl"> + <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> + </td> + <td> + <div class="container"> + <div class="cube potm"> + <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> + </td> + <td> + <div class="container"> + <div class="cube potr"> + <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> + </td> + </tr> + <tr> + <th> + <code>perspective-origin: left;</code> + </th> + <th> + <code>perspective-origin: 50% 50%;</code> + </th> + <th> + <code>perspective-origin: right;</code> + </th> + </tr> + <tr> + <td> + <div class="container"> + <div class="cube poml"> + <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> + </td> + <td> + <div class="container"> + <div class="cube pomm"> + <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> + </td> + <td> + <div class="container"> + <div class="cube pomr"> + <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> + </td> + </tr> + <tr> + <th> + <code>perspective-origin: bottom left;</code> + </th> + <th> + <code>perspective-origin: bottom;</code> + </th> + <th> + <code>perspective-origin: bottom right;</code> + </th> + </tr> + <tr> + <td> + <div class="container"> + <div class="cube pobl"> + <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> + </td> + <td> + <div class="container"> + <div class="cube pobm"> + <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> + </td> + <td> + <div class="container"> + <div class="cube pobr"> + <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> + </td> + </tr> + </tbody> +</table></pre> + +<h4 id="CSS">CSS</h4> + +<pre class="brush: css">/* Shorthand classes for perspective-origin values */ +.potl { + perspective-origin: top left; + -webkit-perspective-origin: top left; +} + +.potm { + perspective-origin: top; + -webkit-perspective-origin: top; +} + +.potr { + perspective-origin: top right; + -webkit-perspective-origin: top right; +} + +.poml { + perspective-origin: left; + -webkit-perspective-origin: left; +} + +.pomm { + perspective-origin: 50% 50%; + -webkit-perspective-origin: 50% 50%; +} + +.pomr { + perspective-origin: right; + -webkit-perspective-origin: right; +} + +.pobl { + perspective-origin: bottom left; + -webkit-perspective-origin: bottom left; +} + +.pobm { + perspective-origin: bottom; + -webkit-perspective-origin: bottom; +} + +.pobr { + perspective-origin: bottom right; + -webkit-perspective-origin: bottom right; +} + +/* Define the container div, the cube div, and a generic face */ +.container { + width: 100px; + height: 100px; + margin: 24px; + border: none; +} + +.cube { + width: 100%; + height: 100%; + backface-visibility: visible; + perspective: 300px; + transform-style: preserve-3d; + -webkit-backface-visibility: visible; + -webkit-perspective: 300px; + -webkit-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); + -webkit-transform: translateZ(50px); +} + +.back { + background: rgba(0, 255, 0, 1); + color: black; + transform: rotateY(180deg) translateZ(50px); + -webkit-transform: rotateY(180deg) translateZ(50px); +} + +.right { + background: rgba(196, 0, 0, 0.7); + transform: rotateY(90deg) translateZ(50px); + -webkit-transform: rotateY(90deg) translateZ(50px); +} + +.left { + background: rgba(0, 0, 196, 0.7); + transform: rotateY(-90deg) translateZ(50px); + -webkit-transform: rotateY(-90deg) translateZ(50px); +} + +.top { + background: rgba(196, 196, 0, 0.7); + transform: rotateX(90deg) translateZ(50px); + -webkit-transform: rotateX(90deg) translateZ(50px) +} + +.bottom { + background: rgba(196, 0, 196, 0.7); + transform: rotateX(-90deg) translateZ(50px); + -webkit-transform: rotateX(-90deg) translateZ(50px); +} + +/* Make the table a little nicer */ +th, p, td { + background-color: #EEEEEE; + padding: 10px; + font-family: sans-serif; + text-align: left; +}</pre> + +<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', '#perspective-origin-property', 'perspective-origin')}}</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> + +<div> + + +<p>{{Compat("css.properties.perspective-origin")}}</p> +</div> + +<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> |