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HTML

              
                <figure>
  <figcaption>SVG PIE Chart with CSS animation</figcaption>
	<svg viewBox="0 0 63.6619772368 63.6619772368">
		<circle class="pie1" cx="31.8309886184" cy="31.8309886184" r="15.9154943092"/>
		<circle class="pie2" cx="31.8309886184" cy="31.8309886184" r="15.9154943092"/>
		<circle class="pie3" cx="31.8309886184" cy="31.8309886184" r="15.9154943092"/>
		<circle class="pie4" cx="31.8309886184" cy="31.8309886184" r="15.9154943092"/>
	</svg>
</figure>
              
            
!

CSS

              
                figure {
  background-color: #eee;
  display: block;
  height: 0;
  margin: 0 auto;
  position: relative;
  font-size:16px;
  font-size:1vw;
  width: 40em;
  padding-bottom: 40em;
}
figcaption {
  font-size:1rem;
  text-align:center;
  color:#fff;
  width: 100%;
  position: absolute;
  left: 0;
  top:40%;
  z-index:2;
}
svg {
  display: block;
  height: 100%;
  width: 100%;
  position: absolute;
  top: 0;
  left: 0;
  overflow: visible;
}
circle {
	fill:rgba(0,0,0,0);
  stroke-width:31.8309886184;
  stroke-dasharray: 0,0,0,100;
  stroke-dashoffset: 25;
  -webkit-animation: pie1 3s infinite ease both;
  animation: pie1 6s infinite ease both;
}
.pie1 {
  stroke:hsl(180,70%,30%);
}
.pie2 {
  stroke:hsl(180,70%,50%);
  -webkit-animation-name: pie2;
  animation-name: pie2;
}
.pie3 {
  stroke:hsl(180,70%,20%);
  -webkit-animation-name: pie3;
  animation-name: pie3;
}
.pie4 {
  stroke:hsl(180,0%,70%);
  -webkit-animation-name: pie4;
  animation-name: pie4;
}
/*
 pie percentage made by stroke-dasharray.
 stroke-dasharray format is...

 keyframe 100% : 0 offset this-percentage rest

 I added keyframe 50% for infinite presentation.
*/

/* 1st pie is 40% */
@-webkit-keyframes pie1 {
  50%,100% {stroke-dasharray: 40,60,0,0;}
}
@keyframes pie1 {
  50%,100% {stroke-dasharray: 40,60,0,0;}
}
/* 2nd pie is 30% */
@-webkit-keyframes pie2 {
  50%,100% {stroke-dasharray: 0,40,30,30;}
}
@keyframes pie2 {
  50%,100% {stroke-dasharray: 0,40,30,30;}
}
/* 3rd pie is 30% */
@-webkit-keyframes pie3 {
  50%,100% {stroke-dasharray: 0,70,20,10;}
}
@keyframes pie3 {
  50%,100% {stroke-dasharray: 0,70,20,10;}
}
/* 4th pie is 10% */
@-webkit-keyframes pie4 {
  50%,100% {stroke-dasharray: 0,90,10,0;}
}
@keyframes pie4 {
  50%,100% {stroke-dasharray: 0,90,10,0;}
}
              
            
!

JS

              
                
              
            
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