JSFiddle - React, Tailwind, and code Playground

HTML

<div class="profile">
  <div class="profile__circle">
    <span class="profile__letters">AN</span>
  </div>
</div>

SCSS

.profile {
  width: 10vw;
  height: 10vw;
  font-size: 5vw;
  
  &__circle {
    background-color: red;
    border-radius: 100%;
    width: 100%;
    height: 100%;
    position:relative;
  }
  
  &__letters {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #fff;
  }
}