piksrys
10/25/2015 - 9:14 PM

preloader.css

preloader.js
content_copyfile_download
(function() {	
	var overlayBox = document.createElement('div');
	overlayBox.id = 'overlay';
	var spinnerHolder = document.createElement('div');
	spinnerHolder.className = 'multi';
	var spiner = document.createElement('div');
	document.body.appendChild(overlayBox);
	overlay.appendChild(spinnerHolder);
	spinnerHolder.appendChild(spiner);
	window.addEventListener('load', function(){
		spinnerHolder.removeChild(spiner);
		overlay.removeChild(spinnerHolder);
		overlay.parentNode.removeChild(overlay);
	});

})();
preloader.html
content_copyfile_download
<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
	<link rel="stylesheet" href="preloader.css">
</head>
</body>
	<script src="preloader.js"></script>
</html>
preloader.css
content_copyfile_download
body {
  margin: 0;
}
html {
    height: 100%;
}
#overlay {
  background: rgba(2,13,16,0.9);
  width: 100%;
  height: 100vh;
  position: relative;
  z-index: 5000;
}
/*******************************************
  TECH SPINNER
  http://codepen.io/joeyhoer/pen/aoiJt
********************************************/
.multi {
  /* position */
  position: absolute;
  top: 50%;
  left: 50%;
  margin-left: -50px;
  margin-top: -50px;
  /* core */
  height: 50px;
  width: 50px;
  border-width: 5px;
  border-style: solid;
  border-color: transparent rgba(255, 255, 255, 0.25) transparent rgba(255, 255, 255, 0.5);
  border-radius: 100%;
  animation: clockwise 1.01s linear infinite;
  z-index: 5000;
}

.multi:after {
  position: absolute;
  display: block;
  top: 5px;
  right: 5px;
  height: 30px;
  width: 30px;
  border-width: 5px;
  border-style: solid;
  border-color: rgba(255, 255, 255, 0.5) transparent transparent;
  border-radius: 100%;
  z-index: 5000;
}

.multi div {
  position: relative;
  height: 40px;
  width: 40px;
  border-width: 5px;
  border-style: solid;
  border-color: rgba(255, 255, 255, 0.25) transparent rgba(255, 255, 255, 0.5);
  border-radius: 100%;
  z-index: 5000;
  animation: counter-clockwise 0.49s linear infinite;
}

.multi div:after {
  position: absolute;
  display: block;
  top: 0;
  right: 0;
  height: 30px;
  width: 30px;
  border-width: 5px;
  border-style: solid;
  border-color: transparent transparent rgba(255, 255, 255, 0.25);
  border-radius: 100%;
  z-index: 5000;
}
@keyframes clockwise {
  to {
    transform: rotate(360deg) translatez(0);
  }
}
@keyframes counter-clockwise {
  to {
    transform: rotate(-360deg) translatez(0);
  }
}