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Add External Stylesheets/Pens

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Code Indentation


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              <div class="wrapper">
  <div class="example">
    <h1>Aliquam gravida</h1>
      Fusce semper id arcu id porttitor. Etiam sed quam vel ante laoreet varius at sed purus. Morbi commodo est nec felis tempor sollicitudin. Aliquam gravida nunc quis vestibulum volutpat. Sed quis dui sodales, congue risus vel, blandit lectus. In porta odio purus, id posuere tortor viverra vel. Etiam nunc quam, rutrum non diam eu, cursus tincidunt lorem.
  <div class="range">
    <span class="range__min"></span>
    <span class="range__container"></span>
    <span class="range__max"></span>
              @font-face {
  font-family: AmstelvarVF;
  font-display: swap;
  src: url(https://yoksel.github.io/variable-fonts/assets/fonts/AmstelvarAlpha/AmstelvarAlpha-VF.ttf) format("truetype");

  display: flex;
  min-height: 100%;
  width: 100%;

  display: flex;
  justify-content: center;
  align-items: center;
  font: 16px/1.4 Trebuchet MS, Arial, sans-serif;
.wrapper {
  max-width: 500px;
  margin: 0 30px;
  text-align: center;

.example {
  font-family: AmstelvarVF;
  H1 {
    margin: 0 0 .25em;
    font-size: 50px;  
  p {
    max-height: 110px;
    overflow: hidden;

.range {
  margin-top: 32px;
  padding: 16px 0;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #ececec;
  border-radius: 5px;

.range__container {
  margin: 0 10px;
  display: flex;
  align-items: center;

.range__input {
  cursor: pointer;
              const config = {
  min: 10,
  max: 72,
  name: 'opsz',
  fullName: 'Optical size',
  step: 1

const wrapper = document.querySelector('.wrapper');
const rangeContainer = document.querySelector('.range__container');
const rangeMin = document.querySelector('.range__min');
const rangeMax = document.querySelector('.range__max');
const example = document.querySelector('.example');

const rangeInput = document.createElement('input');
rangeInput.type = 'range';
rangeInput.min = config.min;
rangeInput.max = config.max;
rangeInput.step = config.step;
rangeInput.value = rangeInput.min;


rangeMin.innerHTML = rangeInput.min;
rangeMax.innerHTML = rangeInput.max;

rangeInput.addEventListener('input', function() {

function setVariation(val) {
  example.style['font-variation-settings'] = `"wdth" 400, "wght" 70, "${config.name}" ${val}`;
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