JSFiddle - React, Tailwind, and code Playground
HTML
<p>x<span class="superscript">2</span> = 9</p>
CSS
span.superscript { vertical-align: super; font-size:50%; }
<p>x<span class="superscript">2</span> = 9</p>
span.superscript { vertical-align: super; font-size:50%; }