JSFiddle - React, Tailwind, and code Playground

by niks_on

HTML

<h1>
Lorem ipsum
</h1>

CSS

h1 {
  position: relative;
}
h1::after {
  content: "";
  position: absolute;
  width: 100px;
  height: 1px;
  background-color: #000;
  left: 0;
  top: 25px;
  display: block;
  transform: rotate(-45deg);
}