perspective-origin

CSS 属性 perspective-origin 指定了观察者的位置,用作 perspective 属性的消失点。

语法

/* 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;

x-position
指定消失点的横坐标,其值有以下形式:
  • <length-percentage> 长度值或相对于元素宽度的百分比值,可为负值。
  • 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。
y-position
指定消失点的纵坐标,其值有以下形式:
  • <length-percentage> 长度值或相对于元素高度的百分比值,可为负值。
  • 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。

正式语法

<position>

where
<position> = [ [ left | center | right ] || [ top | center | bottom ] | [ left | center | right | <length-percentage> ] [ top | center | bottom | <length-percentage> ]? | [ [ left | right ] <length-percentage> ] && [ [ top | bottom ] <length-percentage> ] ]

where
<length-percentage> = <length> | <percentage>

举例

修改 perspective origin

这个例子展示了带有常用 perspective-origin 值的立方体。

结果

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>

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;
}

规范

Specification Status Comment
CSS Transforms Level 2
perspective-origin
Editor's Draft Initial definition.
初始值50% 50%
适用元素transformable elements
是否是继承属性
Percentagesrefer to the size of bounding box
计算值for length the absolute value, otherwise a percentage
Animation typesimple list of length, percentage, or calc

浏览器兼容性

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
perspective-originChrome Full support 36
Full support 36
Full support 12
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Edge Full support 12
Full support 12
Full support 12
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Firefox Full support 16
Full support 16
Full support 10
Prefixed
Prefixed Implemented with the vendor prefix: -moz-
Full support 49
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Full support 45
Prefixed Disabled
Prefixed Implemented with the vendor prefix: -webkit-
Disabled From version 45: this feature is behind the layout.css.prefixes.webkit preference (needs to be set to true). To change preferences in Firefox, visit about:config.
IE Full support 10Opera Full support 23
Full support 23
Full support 15
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Safari Full support 9
Full support 9
Full support 4
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
WebView Android Full support 37
Full support 37
Full support 3
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Chrome Android Full support 36
Full support 36
Full support 18
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Firefox Android Full support 16
Full support 16
Full support 10
Prefixed
Prefixed Implemented with the vendor prefix: -moz-
Full support 49
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Full support 45
Prefixed Disabled
Prefixed Implemented with the vendor prefix: -webkit-
Disabled From version 45: this feature is behind the layout.css.prefixes.webkit preference (needs to be set to true). To change preferences in Firefox, visit about:config.
Opera Android Full support 24
Full support 24
Full support 14
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Safari iOS Full support 9
Full support 9
Full support 2
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Samsung Internet Android Full support 3.0
Full support 3.0
Full support 1.0
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Support for three-value syntax of positionChrome No support 36 — 68
No support 36 — 68
Full support 12
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Edge No support 12 — 79
No support 12 — 79
Full support 12
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Firefox No support 16 — 70
No support 16 — 70
Full support 10
Prefixed
Prefixed Implemented with the vendor prefix: -moz-
Full support 49
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Full support 45
Prefixed Disabled
Prefixed Implemented with the vendor prefix: -webkit-
Disabled From version 45: this feature is behind the layout.css.prefixes.webkit preference (needs to be set to true). To change preferences in Firefox, visit about:config.
IE Full support 10Opera No support 15 — 55
Prefixed
No support 15 — 55
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Safari Full support 9
Full support 9
Full support 4
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
WebView Android No support 37 — 68
No support 37 — 68
Full support 3
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Chrome Android No support 36 — 68
No support 36 — 68
Full support 18
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Firefox Android Full support 16
Full support 16
Full support 10
Prefixed
Prefixed Implemented with the vendor prefix: -moz-
Full support 49
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Full support 45
Prefixed Disabled
Prefixed Implemented with the vendor prefix: -webkit-
Disabled From version 45: this feature is behind the layout.css.prefixes.webkit preference (needs to be set to true). To change preferences in Firefox, visit about:config.
Opera Android No support 14 — 48
Prefixed
No support 14 — 48
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Safari iOS Full support 9
Full support 9
Full support 2
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Samsung Internet Android No support 3.0 — 10.0
No support 3.0 — 10.0
Full support 1.0
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-

Legend

Full support  
Full support
No support  
No support
User must explicitly enable this feature.
User must explicitly enable this feature.
Requires a vendor prefix or different name for use.
Requires a vendor prefix or different name for use.

相关连接