start with javascript css animation code example
Example 1: js start css animation
const element = document.querySelector(".yourElementClass");
const btn = document.querySelector(".yourButtonClass");
btn.onclick = () => {
element.style.animation = "YourAnimation 1s linear infinite"
}
// you will need js to start an animation, Don't forget to declare it using css
Example 2: start animation with javascript
element.addEventListener("click", function(e){
element.classList.remove("anim");
setTimeout(() => element.classList.add("anim"), 0);
}, false);