perspective
CSS perspective Property
The perspective property gives a 3D-positioned element some perspective and determines the distance between the z=0 plane.
A 3D element with z>0 becomes larger, a 3D-element with z<0 becomes smaller.
The perspective property does not take 0 or negative values.
The perspective property is one of the CSS3 properties.
The major difference between the perspective property and the perspective() value of the transform property is the following: the perspective property does not affect how an element is rendered and only the child element gets a perspective view. Whereas the perspective() value only gives an element depth.
For maximum browser compatibility this property is used with -webkit- extension.
| 类目 | 类目 |
|---|---|
| Initial Value | none |
| Applies to | Transformable elements. |
| Inherited | No. |
| Animatable | Yes. The transformation of the perspective is animatable. |
| Version | CSS3 |
| DOM Syntax | object.style.perspective = “70px”; |
Syntax
Syntax
perspective: length | none | initial | inherit;
Example of the perspective property:
<!DOCTYPE html>
<html>
<head>
<title>Title of the element</title>
<style>
.element1 {
padding: 50px;
position: absolute;
border: 1px solid #666;
background-color: #1c87c9;
background: #8ebf42;
-webkit-transform-style: preserve-3d;/* Safari 3-8 */
-webkit-transform: rotateX(40deg);/* Safari 3-8 */
transform-style: preserve-3d;
transform: rotateX(40deg);
}
.element2 {
position: relative;
height: 160px;
width: 160px;
margin-left: 20px;
border: 1px solid #000;
-webkit-perspective: none;/* Safari 4-8 */
perspective: none;
</style>
</head>
<body>
<h2>Perspective property example</h2>
<h3>perspective: none:</h3>
<div class="element2">
Box2
<div class="element1">Box1</div>
</div>
</body>
</html>
Result
Example of the perspective property specified as 100px:
<!DOCTYPE html>
<html>
<head>
<title>Title of the element</title>
<style>
.element1 {
padding: 50px;
position: absolute;
border: 1px solid #666;
background-color: #1c87c9;
background: #8ebf42;
-webkit-transform-style: preserve-3d;/* Safari 3-8 */
-webkit-transform: rotateX(40deg);/* Safari 3-8 */
transform-style: preserve-3d;
transform: rotateX(40deg);
}
.element2 {
position: relative;
height: 150px;
width: 150px;
margin-left: 50px;
border: 1px solid #000;
-webkit-perspective: 100px;/* Safari 4-8 */
perspective: 100px;
</style>
</head>
<body>
<h2>Perspective property example</h2>
<h3>perspective: none:</h3>
<div class="element2">
Box2
<div class="element1">Box1</div>
</div>
</body>
</html>
Values
Values
| Value | Description |
|---|---|
| length | Applies a perspective transform to the element and its content. |
| none | Applies no perspective transform. |
| initial | Makes the property use its default value. |
| inherit | Inherits the property from its parents element. |