var items = 10;
var waitTime = 10;
var maxItems = 1000;
var itemCount = 0;

setInterval(function(){
    
	if(itemCount > maxItems) {return;} 
 	itemCount++;
        
  var _top = Math.floor((Math.random() * 90) + 1);
  var _left = Math.floor((Math.random() * 90) + 1);
  
  var thisDiv = document.createElement("DIV");
  thisDiv.classList.add("item");
  thisDiv.innerHTML = Math.floor((Math.random() * 1)+ 0.5);     
  thisDiv.style.top = _top + '%';
  thisDiv.style.left = _left+'%';
	document.getElementById("container").appendChild(thisDiv);
	}
, waitTime);