perspective()
Quick Summary for perspective()
perspective() CSS function defines a transformation that sets the distance between the   user and the z=0 plane, the perspective from which the viewer would be if the 2-dimensional interface were   3-dimensional. Its result is a <transform-function> data type.
			  Code Usage for perspective()
perspective(d) More Details for perspective()
perspective()
   The perspective() CSS function defines a transformation that sets the distance between the   user and the z=0 plane, the perspective from which the viewer would be if the 2-dimensional interface were   3-dimensional. Its result is a <transform-function> data type. 
   The perspective() transform function is part of the transform value applied on the   element being transformed. This differs from the perspective and perspective-origin   properties which are attached to the parent of a child transformed in 3-dimensional space. 
Syntax
   The perspective distance used by perspective() is specified by a <length> value,   which represents the distance between the user and the z=0 plane,   or by none.   The z=0 plane is the plane where everything appears   in a 2-dimensional view, or the screen.   Negative values are syntax errors.   Values smaller than 1px (including zero) are clamped to 1px.   Values other than none cause   elements with positive z positions to appear larger,   and elements with negative z positions to appear smaller.   Elements with z positions equal to or larger than the perspective value   disappear as though they are behind the user.   Large values of perspective represent a small transformation;   small values of perspective() represent a large transformation;   perspective(none) represents perspective from infinite distance   and no transformation. 
perspective(d) Values
d       Is a <length> representing the distance from the user to the z=0 plane. If it is 0 or a       negative value, no perspective transform is applied.     
| Cartesian coordinates on ℝ^2 | Homogeneous coordinates on ℝℙ^2 | Cartesian coordinates on ℝ^3 | Homogeneous coordinates on ℝℙ^3 | 
|---|---|---|---|
| This transformation applies to the 3D space and can't be represented on the plane. | This transformation is not a linear transformation in ℝ^3, and can't be represented using a Cartesian-coordinate matrix. | ( 1 0 0 0 0 1 0 0 0 0 1 0 0 0 − 1 / d 1 ) | |
Examples
HTML
<p>Without perspective:</p> <div class="no-perspective-box">   <div class="face front">A</div>   <div class="face top">B</div>   <div class="face left">C</div> </div>  <p>With perspective (9cm):</p> <div class="perspective-box-far">   <div class="face front">A</div>   <div class="face top">B</div>   <div class="face left">C</div> </div>  <p>With perspective (4cm):</p> <div class="perspective-box-closer">   <div class="face front">A</div>   <div class="face top">B</div>   <div class="face left">C</div> </div> CSS
.face {   position: absolute;   width: 100px;   height: 100px;   line-height: 100px;   font-size: 100px;   text-align: center; }  p + div {   width: 100px;   height: 100px;   transform-style: preserve-3d;   margin-left: 100px; } .no-perspective-box {   transform: rotateX(-15deg) rotateY(30deg); }  .perspective-box-far {   transform: perspective(9cm) rotateX(-15deg) rotateY(30deg); }  .perspective-box-closer {   transform: perspective(4cm) rotateX(-15deg) rotateY(30deg); }  .top {   background-color: skyblue;   transform: rotateX(90deg) translate3d(0, 0, 50px); }  .left {   background-color: pink;   transform: rotateY(-90deg) translate3d(0, 0, 50px); }  .front {   background-color: limegreen;   transform: translate3d(0, 0, 50px); } Result
Specifications
| Specification | 
|---|
| CSS Transforms Module Level 2 # funcdef-perspective | 
See also
transform   <transform-function> Select your preferred language English (US)Français日本語Português (do Brasil)中文 (简体) Change language
			   
	