JSFiddle - React, Tailwind, and code Playground

HTML

<style data="test" type="text/css">
</style>

<input type="range" min="1" max="100" value="50" class="slider" id="myRange">
<p>Value: <span id="demo"></span></p>

CSS

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 25px;
    height: 25px;
    border-radius: 50%;
    background: #4CAF50;
    cursor: pointer;
}
.slider {
    -webkit-appearance: none;
    margin-top: 40px;
    width: 100%;
    height: 15px;
    border-radius: 5px;
    background: #d3d3d3;
    outline: none;
}

JavaScript

var slider = document.getElementById("myRange");
var output = document.getElementById("demo");
var style = document.querySelector('[data="test"]');

setData(slider.value);

slider.oninput = function() {
    setData(this.value);
}

function setData(x){
    output.innerHTML = x;
    style.innerHTML = ".slider::-webkit-slider-thumb { width: " + (x < 10 ? 10 : x)  + "px !important; height: " + (x < 10 ? 10 : x) + "px !important; }";
}