Edit fiddle - JSFiddle - React, Tailwind, and code Playground

JSFiddle - React, Tailwind, and code Playground

HTML

<div class="number"><span>1</span></div>
<div class="electroneg"><span>2,1</span></div>

CSS

.number{background-color:green; padding: 10px 0px;}
.number span {opacity:0;}
.number:hover span {opacity:1;}

.electroneg {background-color: blue; padding: 10px 0px;}
.electroneg span {opacity:0;}
.electroneg:hover span {opacity:1;}

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JSFiddle - React, Tailwind, and code Playground

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CSS

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Join the 4+ million users, and keep the JSFiddle dream alive.

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Use pre-released features

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Console