JSFiddle - React, Tailwind, and code Playground

HTML

<h2 class="text-center">Welcome to our Website</h2>

CSS

h2 {
  display:block
}

h2:after {
    border-bottom: 4px solid #ae263d;
    content: "";
    display: block;
    margin-top: 10px;
    width: 50px;
}