In this blog we will be creating a 3D pyramid which will be rotating around vertical axis, ie, Y-axis and also on its own axis using pure css. The most important properties used in the making of pyramid were : transform-origin, transfrom-style, and transform.

Transform property : is used for the 2D or 3D transformation of an element. With this property we can rotate, scale, move, skew the elements.

transform: rotateX(0deg) rotateY(40deg);

Transform-origin : with this property we can change the positing of the transformed elements.

transform-origin: 50% 100% 30px;

CSS Code:

.container{

	width: 800px;
	margin: 0px auto;
			
}

.pyramid{

        height: 230px;
	left: 0;
	margin: 0 auto;
	position: absolute;
	right: 0;
	transform: rotateX(0deg) rotateY(40deg);
	transform-origin: 50% 100% 30px;
	transform-style: preserve-3d;
	-webkit-transform-style: preserve-3d;
	-moz-transform-style: preserve-3d;
	-ms-transform-style: preserve-3d;
	width: 1000px;
	animation-name: rotate;
	animation-duration: 4s;
	animation-iteration-count: infinite;
	animation-timing-function: linear;

}

.pyramid div{	

	width: 0px;
	height: 0px;
	border-left: 180px solid transparent; 
	border-right: 180px solid transparent;
	border-bottom: 180px solid rgba(255,0,0,0.6);
	position: absolute;
	left: 0;
	transform-origin:  50% 0;
}

.pyramid div:nth-child(1){

	left: 0;
	transform: rotateY(-120deg) rotateX(35deg);
    	transform-origin: 100% 100% 0;
}

.pyramid div:nth-child(2){

	left: 360px;
	transform: rotateX(35deg);
    	transform-origin: 0 100% 0;
    	border-bottom-color: blue;
}

.pyramid div:nth-child(3){

	left: 720px;
  	transform: rotateY(120deg) rotateX(35deg);
    	transform-origin: 0 100% 0;
    	border-bottom-color: yellow;
}

@keyframes rotate{

	from{
		transform: rotateX(0deg) rotateY(40deg);
	}
			
	to{
		transform: rotateX(0deg) rotateY(360deg);
			
	}
}
		

HTML Code:

<div class="container">

	<div class="pyramid">
		<div></div>
		<div></div>
		<div></div>
	</div>
</div>

For output download the file :  pyramid.html

Happy Coding :)