JSFiddle - React, Tailwind, and code Playground

HTML

<button>TEST</button>

<br><br>

<a href='#'>Change button's :active background-color to yellow</a>

CSS

button {
    background-color: blue;
    color: white;
    font-size: 200%;
}

button:active {
    background-color: red;
}

JavaScript

$('a').click(function() {
    event.preventDefault();
    
    $('button:active').css('background-color', 'yellow');
});