--- title: perspective-origin slug: Web/CSS/perspective-origin translation_of: Web/CSS/perspective-origin ---
CSS 属性 perspective-origin
指定了观察者的位置,用作 {{cssxref("perspective")}} 属性的消失点。
/* 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;
left
, 关键字,0值的简记。center
, 关键字,50%的简记。right
, 关键字,100%的简记。top
, 关键字,0值的简记。center
, 关键字,50%的简记。bottom
, 关键字,100%的简记。这个例子展示了带有常用 perspective-origin
值的立方体。
{{EmbedLiveSample('Changing_the_perspective_origin', '100%', 700)}}
<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>
/* 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; }
Specification | Status | Comment |
---|---|---|
{{SpecName('CSS Transforms 2', '#perspective-origin-property', 'perspective-origin')}} | {{Spec2('CSS Transforms 2')}} | Initial definition. |
{{cssinfo}}
{{Compat("css.properties.perspective-origin")}}