html preloader pure css

<!DOCTYPE html>
<html>

  <head>
    <link rel="stylesheet" href="preload.css">

  </head>

  <body>


   <div id="preloader"> 

    	<div id="loader">	   
    	<div class="sk-cube-grid">
  <div class="sk-cube sk-cube1"></div>
  <div class="sk-cube sk-cube2"></div>
  <div class="sk-cube sk-cube3"></div>
  <div class="sk-cube sk-cube4"></div>
  <div class="sk-cube sk-cube5"></div>
  <div class="sk-cube sk-cube6"></div>
  <div class="sk-cube sk-cube7"></div>
  <div class="sk-cube sk-cube8"></div>
  <div class="sk-cube sk-cube9"></div>
</div>
    	<font color=white>loading...</font>
    	</div>
   </div> 
   

<!-- jQuery Plugin -->
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>

<!-- Preloader -->
<script type="text/javascript">
    //<![CDATA[
    function showSite(){
          $('#loader').fadeOut(); // will first fade out the loading animation 
          $('#preloader').delay(350).fadeOut('slow'); // will fade out the white DIV that covers the website. 
          $('body').delay(350).css({'overflow':'visible'});
    }
        $(window).on('load', function() { // makes sure the whole site is loaded 
        setTimeout(function(){ showSite() }, 2000);
        })
    //]]>
</script>
  </body>

</html>

// Code goes here

/* Styles go here */

#preloader {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	background: #050505;
	z-index: 800;
	height: 100%;
	width: 100%;
}
.no-js #preloader, .oldie #preloader {
	display: none;
}
#loader {
	position: absolute;
	left: 50%;
	top: 50%;
	width: 60px;
	height: 60px;
	margin: -30px 0 0 -30px;
	padding: 0;
}



/*cubes*/
.sk-cube-grid {
  width: 40px;
  height: 40px;
}

.sk-cube-grid .sk-cube {
  width: 33%;
  height: 33%;
  background-color: #333;
  float: left;
  -webkit-animation: sk-cubeGridScaleDelay 1.3s infinite ease-in-out;
          animation: sk-cubeGridScaleDelay 1.3s infinite ease-in-out; 
}
.sk-cube-grid .sk-cube1 {
  -webkit-animation-delay: 0.2s;
          animation-delay: 0.2s; }
.sk-cube-grid .sk-cube2 {
  -webkit-animation-delay: 0.3s;
          animation-delay: 0.3s; }
.sk-cube-grid .sk-cube3 {
  -webkit-animation-delay: 0.4s;
          animation-delay: 0.4s; }
.sk-cube-grid .sk-cube4 {
  -webkit-animation-delay: 0.1s;
          animation-delay: 0.1s; }
.sk-cube-grid .sk-cube5 {
  -webkit-animation-delay: 0.2s;
          animation-delay: 0.2s; }
.sk-cube-grid .sk-cube6 {
  -webkit-animation-delay: 0.3s;
          animation-delay: 0.3s; }
.sk-cube-grid .sk-cube7 {
  -webkit-animation-delay: 0s;
          animation-delay: 0s; }
.sk-cube-grid .sk-cube8 {
  -webkit-animation-delay: 0.1s;
          animation-delay: 0.1s; }
.sk-cube-grid .sk-cube9 {
  -webkit-animation-delay: 0.2s;
          animation-delay: 0.2s; }

@-webkit-keyframes sk-cubeGridScaleDelay {
  0%, 70%, 100% {
    -webkit-transform: scale3D(1, 1, 1);
            transform: scale3D(1, 1, 1);
  } 35% {
    -webkit-transform: scale3D(0, 0, 1);
            transform: scale3D(0, 0, 1); 
  }
}

@keyframes sk-cubeGridScaleDelay {
  0%, 70%, 100% {
    -webkit-transform: scale3D(1, 1, 1);
            transform: scale3D(1, 1, 1);
  } 35% {
    -webkit-transform: scale3D(0, 0, 1);
            transform: scale3D(0, 0, 1);
  } 
}