JSFiddle - React, Tailwind, and code Playground

HTML

<div class="innershadow" style="width: 100px; height: 100px;"></div>
<br />
<input class="innershadow" type="text" />

CSS

.innershadow{ -moz-box-shadow: inset 0 0 5px 5px #888; -webkit-box-shadow: inset 0 0 5px 5px#888; box-shadow: inset 0 0 5px 5px #888;}