JSFiddle - React, Tailwind, and code Playground

HTML

<br /><br />
<s >Strikethrough</s>

CSS

s {
    color: red;
    display: inline-block;
    text-decoration: none;
    position: relative;
  }
s:after {
    content: '';
    display: block;
    width: 100%;
    height: 50%;
    position: absolute;
    top: 0;
    left: 0;
    border-bottom: 2px solid;
}