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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.



  <select id="iterations">
    <option selected>8</option>
  <select id="keyframes">
    <option value="0">Original</option>
    <option value="1">Alternate</option>
  <p>For full support, please try a browser that supports the <span id="waapi-supported">Web Animations API</span>, <span id="composite-supported"><code>composite</code> property</span>, <span id="iteration-composite-supported"><code>iterationComposite</code> property</span>, and <span id="set-keyframes-supported"><code>setKeyframes()</code> function</span>, 


              div {
  border: 1vmin solid hsl(var(--hue, 153), 90%, 54%);
  border-radius: 50%;
  width: 5vmin;
  height: 5vmin;
  transform: translateX(-5vmin);
  transform-origin: 0% 50%;

body {
  min-height: 100vh;
  display: flex;
  justify-content: flex-start;
  align-items: flex-end;
  overflow: hidden;
  background: #16161c;
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
*, *::before, *::after {
  box-sizing: border-box;

form {
  position: absolute;
  padding: 1rem;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  color: #fafbff;
label {
  padding-right: .5rem;
  font-size: .875rem;
select:not(:last-of-type) {
  margin-right: 2rem;
form p {
  width: 100%;
  padding: 1rem;
  text-align: center;
  line-height: 1.44;
form p span {
  border-bottom: .2rem solid hsl(343, 100%, 56%);
.waapi-supported #waapi-supported,
.composite-supported #composite-supported,
.iteration-composite-supported #iteration-composite-supported,
.set-keyframes-supported #set-keyframes-supported {
  border-color: hsl(163, 100%, 56%);


              const div = document.querySelector('div');
const count = 8;
const iterationKeyframes = [
  { transform: 'translateY(0vh)' },
  { transform: 'translateY(0vh)' },
  { transform: 'translateY(-20vh)' },
  { transform: 'translateY(-9vh)' },
  { transform: 'translateY(-9vh)' },

if (div.animate) {
  var iterations = div.animate(iterationKeyframes, {
    duration: 1000,
    iterations: count,
    direction: 'normal',
    fill: 'both',
    easing: 'ease-in-out',
    composite: 'add', //take into account the transform applied in CSS
    iterationComposite: 'accumulate' //each iteration will build on the last
  var horizontal = div.animate({
    transform: [
      'translateX(calc(100vw + 5vmin))'
  }, {
    duration: 1000,
    iterations: count,
    fill: 'both',
    easing: 'linear',
    composite: 'add' //take into account `transform` supplied in CSS and previous WAAPI animation
  checkSupport(iterations, horizontal);
  iterations.onfinish = () => {

document.getElementById('iterations').addEventListener('change', e => {
  let value = parseFloat(e.currentTarget.value);
  iterations.effect.timing.iterations = value;
  horizontal.effect.timing.iterations = value;

const newBetterKeyframes = [
  { transform: 'translateY(0vh)' },
  { transform: 'translateY(0vh) scale(.5)' },
  { transform: 'translateY(10vh) scale(.5)' },
  { transform: 'translateY(-9vh) scale(.7)' },
  { transform: 'translateY(-9vh)' },
document.getElementById('keyframes').addEventListener('change', e => {
  let value = e.currentTarget.value;
  if (value == 1) {
  } else {

function checkSupport(anim1, anim2) {
  if (anim1 && anim1.effect && anim1.effect.composite === 'add') {
  if (anim1 && anim1.effect && anim1.effect.iterationComposite === 'accumulate') {
  if (anim1 && anim1.effect && typeof anim1.effect.setKeyframes === 'function') {