JSFiddle - React, Tailwind, and code Playground

HTML

<body>
  <div class="c100 p25"> <span>25%</span>
    <div class="slice">
      <div class="bar"></div>
      <div class="fill"></div>
    </div>

  </div>

</body>

CSS

.pie,
.c100 .bar {
  position: absolute;
  border: 0.08em solid #307bbb;
  width: 0.84em;
  height: 0.84em;
  clip: rect(0em, 0.5em, 1em, 0em);
  border-radius: 50%;
  -webkit-transform: rotate(0deg);
  -moz-transform: rotate(0deg);
  -ms-transform: rotate(0deg);
  -o-transform: rotate(0deg);
  transform: rotate(0deg);
}

.c100 {
  position: relative;
  font-size: 120px;
  width: 1em;
  height: 1em;
  border-radius: 50%;
  float: left;
  margin: 0 0.1em 0.1em 0;
  background-color: #cccccc;
}

.c100 > span {
  position: absolute;
  width: 100%;
  z-index: 1;
  left: 0;
  top: 0;
  width: 5em;
  line-height: 5em;
  font-size: 0.2em;
  color: #cccccc;
  display: block;
  text-align: center;
  white-space: nowrap;
  -webkit-transition-property: all;
  -moz-transition-property: all;
  -o-transition-property: all;
  transition-property: all;
  -webkit-transition-duration: 0.2s;
  -moz-transition-duration: 0.2s;
  -o-transition-duration: 0.2s;
  transition-duration: 0.2s;
  -webkit-transition-timing-function: ease-out;
  -moz-transition-timing-function: ease-out;
  -o-transition-timing-function: ease-out;
  transition-timing-function: ease-out;
}

.c100:after {
  position: absolute;
  top: 0.08em;
  left: 0.08em;
  display: block;
  content: " ";
  border-radius: 50%;
  background-color: #f5f5f5;
  width: 0.84em;
  height: 0.84em;
  -webkit-transition-property: all;
  -moz-transition-property: all;
  -o-transition-property: all;
  transition-property: all;
  -webkit-transition-duration: 0.2s;
  -moz-transition-duration: 0.2s;
  -o-transition-duration: 0.2s;
  transition-duration: 0.2s;
  -webkit-transition-timing-function: ease-in;
  -moz-transition-timing-function: ease-in;
  -o-transition-timing-function: ease-in;
  transition-timing-function: ease-in;
}

.c100 .slice {
  position: absolute;
  width: 1em;
  height: 1em;
  clip: rect(0em, 1em, 1em, 0.5em);
}

.c100 .slice:before {}

.c100.p25 .bar {
  -webkit-transform: rotate(90deg);
  -moz-transform: rotate(90deg);
...