JSFiddle - React, Tailwind, and code Playground

HTML

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Placeat pariatur sed error unde eius aliquam nostrum hic modi enim doloremque dignissimos asperiores a tempora inventore deserunt quidem esse sunt temporibus!</p>

CSS

p { position: relative; }
p:after {
  content: '';
  display: block;
  position: absolute;
  bottom: -10px;
  width: 100%;
  height: 2px;
  border: 1px solid #ddddd7;
  border-left: none;
  border-right: none;
}