Falling images demo

CSS

.mystyle {
border-radius: 20px;
box-shadow: 0px 0px 10px 0 rgba(0, 0, 0, 0.1);
z-index: -2;
width: 360px;
height: auto;
position: fixed;
}

JavaScript

var myPix = new Array("/img/portfolio/30day.jpg", "/img/portfolio/animationposter.jpg","/img/portfolio/beetle.jpg","/img/portfolio/board.jpg","/img/portfolio/cyanotype.jpg","/img/portfolio/dissent.jpg")
document.addEventListener("click", showCoords);

var images = [];

function showCoords(event)
{

var randomNum = Math.floor(Math.random() * myPix.length);
var yourImage = document.createElement("span");
yourImage.innerText = myPix[randomNum] ;
yourImage.classList.add("mystyle");
yourImage.style.cssText = " width:360px;height:auto;position:fixed;top:" + event.clientY + "px;left:" + event.clientX + "px;";
images.push([yourImage,0,0]);
document.body.appendChild(yourImage);
}
animate = function(){
   for(var image of images){ // loop over all elements of our array
      image[1] += 1; //increase the age
      if(image[1] > 400){ //if old enough, fall
         image[2] += 0.1; //accelerate, tweak this value to change how strong gravity is
         currentTop = parseFloat(image[0].style.top.replace("px","")); // get the current y position
         currentTop += image[2]; //move
         newTop = String(currentTop) + "px"; //change back to string
         image[0].style.top = newTop; //set the attribute

         if(newTop > document.documentElement.clientHeight){ //if off-screen, remove it
         document.body.removeChild(image[0]);
         images.splice(images.indexOf(image),1); //remove from array
         }
      }
   }
}
setInterval(animate,5)