const container = document.getElementById("container"); // console.log(container.children); let images = Array.from(container.children); // console.log(images); // for (index in images) { // console.log(images[index]); // } images.forEach((image) => { left = Math.random() * 100; top = Math.random() * 100; image.style.left = left + "%"; image.style.top = top + "%"; });