JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
  <div class="wrapper">

  </div>
</div>

CSS

.container{
    top: 50%;
    left: 0;
    right: 0;
    margin-top: -30px; /*set to a negative number 1/2 of your height*/
    position:fixed;
    text-align: center;
}

.wrapper{
  display: inline-block;
  border: 1px solid red;
  width:200px;
  height:60px;
}