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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.

              <!-- animation container -->
<h2 class="animation-title">Frame by Frame Animation (JavaScript)</h2>
<img class="eye-animation" 
   alt="blinking eye animation"/>
              // animation container
.animation-title {
  font-family: sans-serif;
  text-align: center;
.eye-animation {
  width: 300px;
  display: block;
  // place in the middle of the screen
  margin: auto; 
              const $element = $('.eye-animation');
const imagePath = 'https://s3-us-west-2.amazonaws.com/s.cdpn.io/123941';
const totalFrames = 18;
const animationDuration = 1300;
const timePerFrame = animationDuration / totalFrames;
let timeWhenLastUpdate;
let timeFromLastUpdate;
let frameNumber = 1;

// 'step' function will be called each time browser rerender the content
// we achieve that by passing 'step' as a parameter to the 'requestAnimationFrame' function
function step(startTime) {
  // 'startTime' is provided by requestAnimationName function, and we can consider it as current time
  // first of all we calculate how much time has passed from the last time when frame was update
  if (!timeWhenLastUpdate) timeWhenLastUpdate = startTime;
  timeFromLastUpdate = startTime - timeWhenLastUpdate;
  // then we check if it is time to update the frame
  if (timeFromLastUpdate > timePerFrame) {
    // and update it accordingly
    $element.attr('src', imagePath + `/Eye-${frameNumber}.svg`);
    // reset the last update time
    timeWhenLastUpdate = startTime;
    // then increase the frame number or reset it if it is the last frame
    if (frameNumber >= totalFrames) {
      frameNumber = 1;
    } else {
      frameNumber = frameNumber + 1;

// create a set of hidden divs
// and set their background-image attribute to required images
// that will force browser to download the images
$(document).ready(() => {
  for (var i = 1; i < totalFrames + 1; i++) {
    $('body').append(`<div id="preload-image-${i}" style="background-image: url('${imagePath}/Eye-${i}.svg');"></div>`);

// wait for images to be downloaded and start the animation
$(window).on('load', () => {
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