JSFiddle - React, Tailwind, and code Playground

HTML

<a>
  <i>8</i>
</a>

CSS

*{
  box-sizing:border-box;
}
a{
  display:block;
  width:70px;
  height:70px;
  line-height:70px;
  margin:auto;
  border:1px solid;
  text-align:center;
  border-radius:100%;
}
i{
  font-size:40px;
}