https://www.creativebloq.com/css3/20-stunning-examples-css-3d-transforms-11112759
https://github.com/fofr/paulrhayes.com-experiments
<!DOCTYPE html>
<html lang="en">
<head>
<!-- Hey there, thanks for looking at the source. Skip down until you see the experiment start comments -->
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Experiment: A tetrahedron built with CSS 3D transforms — Paul Hayes</title>
<style type="text/css">
#pyramid {
position: relative;
margin: 100px auto;
height: 500px;
100px;
-webkit-transform-style: preserve-3d;
-webkit-animation: spin 10s linear infinite;
-webkit-transform-origin: 116px 200px 116px;
-moz-transform-style: preserve-3d;
-moz-animation: spin 10s linear infinite;
-moz-transform-origin: 116px 200px 116px;
-ms-transform-style: preserve-3d;
-ms-animation: spin 10s linear infinite;
-ms-transform-origin: 116px 200px 116px;
transform-style: preserve-3d;
animation: spin 10s linear infinite;
transform-origin: 116px 200px 116px;
}
@-webkit-keyframes spin {
from {
-webkit-transform: rotateX(0deg) rotateY(0deg) rotateZ(0deg);
}
to {
-webkit-transform: rotateX(360deg) rotateY(360deg) rotateZ(360deg);
}
}
@-moz-keyframes spin {
from {
-moz-transform: rotateX(0deg) rotateY(0deg) rotateZ(0deg);
}
to {
-moz-transform: rotateX(360deg) rotateY(360deg) rotateZ(360deg);
}
}
@-ms-keyframes spin {
from {
-ms-transform: rotateX(0deg) rotateY(0deg) rotateZ(0deg);
}
to {
-ms-transform: rotateX(360deg) rotateY(360deg) rotateZ(360deg);
}
}
@keyframes spin {
from {
transform: rotateX(0deg) rotateY(0deg) rotateZ(0deg);
}
to {
transform: rotateX(360deg) rotateY(360deg) rotateZ(360deg);
}
}
#pyramid > div {
position: absolute;
border-style: solid;
border- 200px 0 200px 346px;
-webkit-transform-origin: 0 0;
-moz-transform-origin: 0 0;
-ms-transform-origin: 0 0;
transform-origin: 0 0;
}
/* Put some text on each face */
#pyramid > div:after {
position: absolute;
content: "Triangle";
color: #fff;
left: -250px;
text-align: center;
}
#pyramid > div:first-child {
border-color: transparent transparent transparent rgba(50, 50, 50, 0.6);
-webkit-transform: rotateY(-19.5deg) rotateX(180deg) translateY(-400px);
-moz-transform: rotateY(-19.5deg) rotateX(180deg) translateY(-400px);
-ms-transform: rotateY(-19.5deg) rotateX(180deg) translateY(-400px);
transform: rotateY(-19.5deg) rotateX(180deg) translateY(-400px);
}
#pyramid > div:nth-child(2) {
border-color: transparent transparent transparent rgba(50, 50, 50, 0.6);
-webkit-transform: rotateY(90deg) rotateZ(60deg) rotateX(180deg) translateY(-400px);
-moz-transform: rotateY(90deg) rotateZ(60deg) rotateX(180deg) translateY(-400px);
-ms-transform: rotateY(90deg) rotateZ(60deg) rotateX(180deg) translateY(-400px);
transform: rotateY(90deg) rotateZ(60deg) rotateX(180deg) translateY(-400px);
}
#pyramid > div:nth-child(3) {
border-color: transparent transparent transparent rgba(50, 50, 50, 0.9);
-webkit-transform: rotateX(60deg) rotateY(19.5deg);
-moz-transform: rotateX(60deg) rotateY(19.5deg);
-ms-transform: rotateX(60deg) rotateY(19.5deg);
transform: rotateX(60deg) rotateY(19.5deg);
}
#pyramid > div:nth-child(4) {
border-color: transparent transparent transparent rgba(50, 50, 50, 0.8);
-webkit-transform: rotateX(-60deg) rotateY(19.5deg) translateX(-116px) translateY(-200px) translateZ(326px);
-moz-transform: rotateX(-60deg) rotateY(19.5deg) translateX(-116px) translateY(-200px) translateZ(326px);
-ms-transform: rotateX(-60deg) rotateY(19.5deg) translateX(-116px) translateY(-200px) translateZ(326px);
transform: rotateX(-60deg) rotateY(19.5deg) translateX(-116px) translateY(-200px) translateZ(326px);
}
</style>
</head>
<body>
<div class="experiment-body clearfix">
<div class="test test-3dtransforms">
<!--
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Start of experiment
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-->
<article id="viewport">
<section id="pyramid">
<div></div>
<div></div>
<div></div>
<div></div>
</section>
</article>
<!--
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End of experiment
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-->
</div>
</div>
</body>
</html>