JSFiddle - React, Tailwind, and code Playground

by tsayen

HTML

<i class='element'></i>

<i class='element2'></i>

CSS

.element:before {
    content:"blah";
    color: red;
}

JavaScript

function getBeforeStyle(selector) {
    return window.getComputedStyle(document.querySelector(selector), ':before');
}

console.log(getBeforeStyle('.element').content);
console.log(getBeforeStyle('.element2').content);