<div class="pie" style="--p:20"> 20%</div>
<div class="pie" style="--p:40;--c:darkblue;--b:10px"> 40%</div>
<div class="pie no-round" style="--p:60;--c:purple;--b:15px"> 60%</div>
<div class="pie animate no-round" style="--p:80;--c:orange;"> 80%</div>
<div class="pie animate" style="--p:90;--c:lightgreen"> 90%</div>
@property --p{
  syntax: '<number>';
  inherits: true;
  initial-value: 0;
}

.pie {
  --p:20;
  --b:22px;
  --c:darkred;
  --w:150px;
  
  width:var(--w);
  aspect-ratio:1;
  position:relative;
  display:inline-grid;
  margin:5px;
  place-content:center;
  font-size:25px;
  font-weight:bold;
  font-family:sans-serif;
}
.pie:before,
.pie:after {
  content:"";
  position:absolute;
  border-radius:50%;
}
.pie:before {
  inset:0;
  background:
    radial-gradient(farthest-side,var(--c) 98%,#0000) top/var(--b) var(--b) no-repeat,
    conic-gradient(var(--c) calc(var(--p)*1%),#0000 0);
  -webkit-mask:radial-gradient(farthest-side,#0000 calc(99% - var(--b)),#000 calc(100% - var(--b)));
          mask:radial-gradient(farthest-side,#0000 calc(99% - var(--b)),#000 calc(100% - var(--b)));
}
.pie:after {
  inset:calc(50% - var(--b)/2);
  background:var(--c);
  transform:rotate(calc(var(--p)*3.6deg)) translateY(calc(50% - var(--w)/2));
}
.animate {
  animation:p 1s .5s both;
}
.no-round:before {
  background-size:0 0,auto;
}
.no-round:after {
  content:none;
}
@keyframes p {
  from{--p:0}
}

body {
  background:#f2f2f2;
}

External CSS

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External JavaScript

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