js animations code example
Example 1: js animation
You can learn js animation from here
https://www.w3schools.com/howto/howto_js_animate.asp
Example 2: how to add animation over image in Javascript
function startAnimation() {
var frameHeight = 102;
var frames = 15;
var frame = 0;
var div = document.getElementById("animation");
setInterval(function () {
var frameOffset = (++frame % frames) * -frameHeight;
div.style.backgroundPosition = "0px " + frameOffset + "px";
}, 100);
}