Draw and Animate a Diamond Using CSS Only

Last Updated On 14 Dec 2018 by

The animation below was created without any JavaScript and only using HTML elements and CSS properties.

The Container

First let’s create a container CSS class that will contain the diamond elements. Because we’re going to be rotating the elements in a 3D space, we define the center of rotation in the middle/center of the area. The idea here is to center the element vertically and horizontally while maintaining objects visible using the overflow: visible property.

.wrap {
  position: absolute;
  width: 0px;
  height: 0px;
  top: 50%;
  left: 50%;
  transform-origin: 0 0;
  transform-style: preserve-3d;
  overflow: visible;

Next we create the HTML container element, or better say the containers.

<div class="wrap rotor-x">
  <div class="wrap rotor-y">
    <div class="wrap rotor-z">...</div>

Notice how we need one container for each axis of rotation. This demo actually only uses X and Y axis but for the sake of 3D joy, we also add support for rotation around the Z axis.

Next, we use CSS to set and/or animate these axes of rotation.

.rotor-x {
  transform: rotateX(-22deg);
.rotor-y {
  animation: spinY 12s infinite linear;
@keyframes spinX {
  from {
    transform: rotateX(0);
  to {
    transform: rotateX(360deg);
@keyframes spinY {
  from {
    transform: rotateY(0);
  to {
    transform: rotateY(360deg);


Now let’s create a .triangle class that will be applied to every single face of the diamond. These faces are also referred here as triangles.

.triangle {
  position: absolute;
  left: -100px;
  top: -50px;
  width: 0;
  height: 0;
  border-left: 100px solid transparent;
  border-right: 100px solid transparent;
  border-bottom: 100px solid #33afff;
  animation: lighting 12s infinite linear;

Once our class is ready we add the triangles to our containers as below:

<div class="wrap rotor-x">
  <div class="wrap rotor-y">
    <div class="wrap rotor-z">
      <div class="triangle bottom face-1"></div>
      <div class="triangle bottom face-2"></div>
      <div class="triangle bottom face-3"></div>
      <div class="triangle bottom face-4"></div>
      <div class="triangle bottom face-5"></div>
      etc ...

And now the most tedious part, we need to position each triangle in a 3D space to create a diamond:

/** Bottom Down **/
.triangle.bottom {
  transform-origin: 50% 0%; }
.triangle.bottom.face-1 {
  transform: translateY(90px) rotateY(0deg) rotateX(35deg)  scaleX(.24) scaleY(-1) ;  }
.triangle.bottom.face-2 {
  transform:  translateY(90px) rotateY(45deg) rotateX(35deg)  scaleX(.24) scaleY(-1) ; }
.triangle.bottom.face-3 {
  transform:  translateY(90px) rotateY(90deg) rotateX(35deg)  scaleX(.24) scaleY(-1) ; }
.triangle.bottom.face-4 {
  transform:  translateY(90px) rotateY(135deg) rotateX(35deg)  scaleX(.24) scaleY(-1) ; }
.triangle.bottom.face-5 {
  transform:  translateY(90px) rotateY(180deg) rotateX(35deg)  scaleX(.24) scaleY(-1) ; }

etc ...

And so on…

Taking it further

Because we’re actually not using any lighting system or normals, we add a cheap trick to simulate reflection by adding random blinking animations to the tiangles, and apply different delays to prevent duplicates.

/* Create blinking animation loops */
@keyframes lighting {
  0% {   border-bottom-color:#33AFFF; }
  50% {  border-bottom-color:#BBE8FF; }
  100% { border-bottom-color:#33AFFF; }
@keyframes lighting-lighter {
  0% {   border-bottom-color:#72C8FF; }
  50% {  border-bottom-color:#99EAFF; }
  100% { border-bottom-color:#72C8FF; }
/* Apply them to the triangle with various delay values */
.triangle.up {
  animation: lighting-lighter 12s infinite linear;
.triangle.up.face-1 {
  animation-delay: -3500ms;
.triangle.up.face-2 {
  animation-delay: -4500ms;
etc ...

Source Code

¡And… Voilà!

Checkout the full source here

About The Author

Headshot of Michael Iriarte aka Mika

Hi, I'm Michael aka Mika. I'm a software engineer with years of experience in frontend development. Thank you for visiting tips4devs.com I hope you learned something fun today! You can follow me on Twitter, see some of my work on GitHub, or read more about me on my website.