JSFiddle - React, Tailwind, and code Playground

HTML

<div class="circle">
<div class="circle__inner">
<div class="circle__wrapper">
<div class="circle__content">This is responsive circle</div>
</div>
</div>
</div>

CSS

.circle {
  position: relative;
  display: block;
  margin: 2em 0;
  background-color: transparent;
  color: #fff;
  text-align: center;
  width: 40%;
    margin: 0 auto;
  box-shadow: 1px 1px 3px 10px black;
    -webkit-border-radius: 50%;
    -moz-border-radius: 50%50%;
    border-radius: 50%;
    
}

.circle:after {
  display: block;
  padding-bottom: 100%;
  width: 100%;
  height: 0;
  border-radius: 50%;
  background-color: #1E73BE;
  content: "";
}

.circle__inner {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.circle__wrapper {
  display: table;
  width: 100%;
  height: 100%;
}

.circle__content {
  display: table-cell;
  padding: 1em;
  vertical-align: middle;
}