How to make 3d coin in pure css?

Question

Making of 3d coin

Answer 1

😵PSYCHØ CØDER😵 better do not refer w3school information.
Mozilla developer provides accurate updated information, always refer to Mozilla, not w3school. https://developer.mozilla.org/en-US/docs/Web/CSS

Answer 2

Read about each thing by css in css3

Answer 3

<div></div>
<style>
div {
width: 100px; height: 100px;
background: grey;
border-radius: 50%;
transform: rotateX(90deg); /* ect...*/
}
</style>

Answer 4

https://code.sololearn.com/Wk934yyvY9E7/?ref=app