JSFiddle - React, Tailwind, and code Playground

HTML

<div class="scroll-control-vertical" style="float: left;">
            <input type="range" value="100" min="20" max="100" onchange="adjust(this.value)" style="-webkit-appearance: slider-vertical; transform: rotate(180deg);"/>
</div>
<span class="value">100</span>

JavaScript

window.adjust = function (newWidth) {
    let ad = document.getElementsByClassName('value')[0];
    console.log(ad);
    ad.innerHTML = newWidth;
}