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HTML

              
                <html xmlns="http://www.w3.org/1999/xhtml" class="no-js">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Submarine</title>
<script src="js/modernizr.custom.57498.js"></script>  
  
</head>
<body>
	<div class="page-wrap">
    <div id="warning">
            <div id="close">
              <span>x</span>
            </div>
            <div id="warningText">
              <p>Your browser will not support the animations available in this demonstration. Please download <a href="https://www.google.com/chrome">chrome</a>, <a href="https://www.apple.com/safari/download/">safari</a>, or <a href="https://www.mozilla.org/en-US/firefox/new/">firefox</a> to see the animation :)</p>
        </div><!--warningText-->
    </div><!--warning-->
    
    <div class="bubbles"><i class="icon-bubbles"></i></div><!--bubbles-->
        <div id="submarine">
            <div class="anchor-window"><i class="icon-anchor-window"></i></div><!--anchor-window-->
            <div class="propellor"><i class="icon-propellor2"></i></div><!--propellor-->
            <div class="dk-brown"><i class="icon-dark-brown3"></i></div><!--dk-brown-->
            <div class="tan"><i class="icon-tan"></i></div><!--tan-->
            <div class="lt-yellow"><i class="icon-light-yellow"></i></div><!--lt-yellow-->
            <div class="o-body"><i class="icon-body2"></i></div><!--o-body-->
            <div class="periscope"><i class="icon-periscope3"></i></div><!--periscope-->
            <div class="fishies"><i class="icon-fishies"></i></div><!--fishies-->
        </div><!--submarine-->
    </div><!--page-wrap-->
    <div class="grass"><i class="icon-sea-grass"></i></div><!--grass-->
</body>
</html>

              
            
!

CSS

              
                @charset "UTF-8";
/* stylesheet for the submarine animation */

@import url 'https://s.cdpn.io/28963/base.css';

* { margin: 0; }

/* font-sizing with rem, source http://snook.ca/archives/html_and_css/font-size-with-rem */
html { font-size: 80%; } 
body { font-size: 16px; font-size: 1.4rem; } /* =14px */

html {
	background: #4d9add; /* Old browsers */
	background: -moz-linear-gradient(top, #4d9add 0%, #7aaede 37%, #5fa2dd 70%, #7eb1dd 100%); /* FF3.6+ */
	background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#4d9add), color-stop(37%,#7aaede), color-stop(70%,#5fa2dd), color-stop(100%,#7eb1dd)); /* Chrome,Safari4+ */
	background: -webkit-linear-gradient(top, #4d9add 0%,#7aaede 37%,#5fa2dd 70%,#7eb1dd 100%); /* Chrome10+,Safari5.1+ */
	background: -o-linear-gradient(top, #4d9add 0%,#7aaede 37%,#5fa2dd 70%,#7eb1dd 100%); /* Opera 11.10+ */
	background: -ms-linear-gradient(top, #4d9add 0%,#7aaede 37%,#5fa2dd 70%,#7eb1dd 100%); /* IE10+ */
	background: linear-gradient(to bottom, #4d9add 0%,#7aaede 37%,#5fa2dd 70%,#7eb1dd 100%); /* W3C */
	filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#4d9add', endColorstr='#7eb1dd',GradientType=0 ); /* IE6-9 */
	width: 100%;
	height: 100%;
	font-family: 'icomoon', serif;
	}
	
body {
	width: 100%;
	height: 100%;
	overflow-x: hidden;
	overflow-y: hidden;
	}

.page-wrap {
	margin-top: -200px;
	min-height: 100%;
	/*sea grass height*/
	margin-bottom: -200px;
	}
	
.page-wrap:after {
	  content: "";
	  display: block;
	  height: 200px;
	}
	
.bubbles {
	min-height: 800px;
	min-width: 800px;
	}
	
.bubbles [class^="icon-"] {
	color: #fff; 
	opacity: 0.35;
	z-index: 1; 
	top: 0px;
	right: 1200px;
	font-size: 50rem;
	position: absolute;
	animation: bkMove 40s infinite cubic-bezier(.49,.5,.36,.81);
	}

#submarine {
	position: absolute;
	top: -180px;
	left: -20px;
	font-size: 60rem;
	animation: subForwards 4s ease-in-out forwards, subDownUp 5s 2s 2 ease-in-out forwards, subHover 3s 4s infinite linear;
	}
	
#submarine div {
	position:absolute;
	top:0px;
	left: 200px;
	}
	
.o-body [class^="icon-"] { 
	color: #fab061; 
	z-index: 3; 
	position: relative;
	}
.lt-yellow [class^="icon-"] { 
	color: #fcc589; 
	z-index: 5;
	position: relative; 
	}
	
.periscope [class^="icon-"] {
	color: #bacad3; 
	z-index: 3; 
	position: absolute;
  top: 25px;
	animation: periscope 5s ease-in-out 7s 2;
	}

.propellor [class^="icon-"] { 
	color: #bacad3; 
	z-index: 20; 
	position: absolute;
	animation: propellorMove 2s linear infinite;
	font-size: 9rem;
	top: 390px;
	left: 413px;
	}
	
.fishies [class^="icon-"] { 
	color: #bacad3; 
	z-index: 20; 
	position: absolute;
	animation: propellorMove 2s linear infinite;
	font-size: 0.15rem;
	top: 444px;
	left: 516px;
	}
	
.tan [class^="icon-"] { 
	color: #d89a54; 
	z-index: 8; 
	position: relative;
	}
	
.dk-brown [class^="icon-"] { 
	color: #552d00;
	z-index: 12;
	position: relative;
	}
	
.anchor-window [class^="icon-"] { 
	z-index: 5000;
	position: relative;
	color: #CED8DB;
	}
	
.grass, .page-wrap:after {
  /* must be the same height as footer */
  height: 200px; 
	}
	
.grass [class^="icon-"] {
	position: absolute;
	bottom: 0; 
	right: 1200px;
	color: #009690;
	font-size: 40rem;
	animation:  bkMove 40s ease-in 1s infinite;
	}
	
.sea-back [class^="icon-"] {
	position: absolute;
	z-index: 1;
	top: 30px; 
	right: 900px;
	color: #82B9DD;
	font-size: 100rem;
	animation:  bkMove 40s ease-in 1s infinite;
	}
	
@keyframes periscope {
  	30%  { transform: translateY(20px); } 
	50%  { transform: translateY(50px); }
	70%  { transform: translateY(5px); } 
	}
	
@keyframes propellorMove {
	100% { transform: rotate(360deg); }
	}
	
@keyframes subHover {
	0%  { transform: translateY(0px) translateX(0px); }
  	50%  { transform: translateY(15px) translateX(10px); }
	}
	
@keyframes subDownUp {
  	50%  { transform: translateY(100px) translateX(15px); }
	}
	
@keyframes subForwards {
  	50%  { transform: translateY(10px) translateX(-60px); }
	}
	
@keyframes bkMove {
    0% {  }
    100% {  
        /* ends off to the left of the containing element */
        right: -1200px; 
    }
}

/*------unsupported browsers-------*/

#warning, #warning.hide { display:none; }

#warning { 
  margin: 0 auto; 
  width: 300px;
  background-color: white;
  padding: 10px;
  z-index: 500;
  top: 30px;
  left: 200px;
  position: absolute;
  font-family: helvetica;
  line-height:1.3em;
  border-radius: 4px;
  } 

.no-keyframes #warning,
.no-cssanimations #warning,
.no-csstransforms #warning,
.no-csstransitions #warning 
{
  display: block;
  text-align: center;
  width: 100%;
  font-size:0.8em;
  padding: 10px;
  background-color: rgb(15,70,131);
  color: white;
  box-shadow: 0px 2px 2px rgba(0,0,0,0.2);
}

#warning a { color:#268399; font-weight:bold; text-decoration: none; }

#warning #close {
  color: red;
  width:15px;
  height:20px;
  box-shadow: 1px 2px 3px #eee;
  position:absolute; 
  right: 4%;
  top: 3%;
  margin-left: 100px;
  font-size: 1.2em;
  padding: 0 0 4px 4px;
} 


/* ICOMOON STUFF */
@font-face {
	font-family: 'icomoon';
	src:url('https://s.cdpn.io/28963/icomoon.eot');
	src:url('https://s.cdpn.io/28963/icomoon.eot?#iefix') format('embedded-opentype'),
		url('https://s.cdpn.io/28963/icomoon.woff') format('woff'),
		url('https://s.cdpn.io/28963/icomoon_1.ttf') format('truetype'),
		url('https://s.cdpn.io/28963/icomoon.svg#icomoon') format('svg');
	font-weight: normal;
	font-style: normal;
}

/* Use the following CSS code if you want to use data attributes for inserting your icons */
[data-icon]:before {
	font-family: 'icomoon';
	content: attr(data-icon);
	speak: none;
	font-weight: normal;
	font-variant: normal;
	text-transform: none;
	line-height: 1;
	-webkit-font-smoothing: antialiased;
}


/* Use the following CSS code if you want to have a class per icon */
/*
Instead of a list of all class selectors,
you can use the generic selector below, but it's slower:
[class*="icon-"] {
*/
.icon-cogs, .icon-cog, .icon-cog-2, .icon-spinner, .icon-sun, .icon-cloud, .icon-lightning, .icon-cloud-2, .icon-snowflake, .icon-sun-2, .icon-chart, .icon-android, .icon-marvin, .icon-pictures, .icon-zip, .icon-multiply, .icon-braillew, .icon-birdhouse, .icon-droplets, .icon-pacman, .icon-earth, .icon-dark-brown, .icon-periscope, .icon-propellor, .icon-propellor-2, .icon-anchor-window, .icon-light-yellow, .icon-body, .icon-tan, .icon-sea-grass, .icon-bubbles, .icon-body2, .icon-lt-bkgd, .icon-space-invaders, .icon-skeletor, .icon-transformers, .icon-rocket, .icon-elipse, .icon-roundedrectangle, .icon-polygon, .icon-zikula, .icon-oneup, .icon-vendetta, .icon-spaceinvaders, .icon-fort, .icon-uniF487, .icon-vinyl, .icon-matt-hakes-moustache, .icon-matt-hakes-spectacles, .icon-propellor2, .icon-fishes, .icon-sea-back, .icon-dark-brown-2, .icon-jquery, .icon-restart, .icon-periscope3, .icon-periscope2, .icon-dark-brown3 {
	font-family: 'icomoon';
	speak: none;
	font-style: normal;
	font-weight: normal;
	font-variant: normal;
	text-transform: none;
	line-height: 1;
	-webkit-font-smoothing: antialiased;
}
.icon-cogs:before {
	content: "\21";
}
.icon-cog:before {
	content: "\22";
}
.icon-cog-2:before {
	content: "\23";
}
.icon-spinner:before {
	content: "\24";
}
.icon-sun:before {
	content: "\25";
}
.icon-cloud:before {
	content: "\26";
}
.icon-lightning:before {
	content: "\27";
}
.icon-cloud-2:before {
	content: "\28";
}
.icon-snowflake:before {
	content: "\29";
}
.icon-sun-2:before {
	content: "\2a";
}
.icon-chart:before {
	content: "\2b";
}
.icon-android:before {
	content: "\2c";
}
.icon-marvin:before {
	content: "\2d";
}
.icon-pictures:before {
	content: "\2e";
}
.icon-zip:before {
	content: "\2f";
}
.icon-multiply:before {
	content: "\30";
}
.icon-braillew:before {
	content: "\31";
}
.icon-birdhouse:before {
	content: "\32";
}
.icon-droplets:before {
	content: "\33";
}
.icon-pacman:before {
	content: "\34";
}
.icon-earth:before {
	content: "\35";
}
.icon-dark-brown:before {
	content: "\36";
}
.icon-periscope:before {
	content: "\37";
}
.icon-propellor:before {
	content: "\38";
}
.icon-propellor-2:before {
	content: "\39";
}
.icon-anchor-window:before {
	content: "\3a";
}
.icon-light-yellow:before {
	content: "\3b";
}
.icon-body:before {
	content: "\3c";
}
.icon-tan:before {
	content: "\3d";
}
.icon-sea-grass:before {
	content: "\3e";
}
.icon-bubbles:before {
	content: "\3f";
}
.icon-body2:before {
	content: "\40";
}
.icon-lt-bkgd:before {
	content: "\41";
}
.icon-space-invaders:before {
	content: "\42";
}
.icon-skeletor:before {
	content: "\43";
}
.icon-transformers:before {
	content: "\44";
}
.icon-rocket:before {
	content: "\f29c";
}
.icon-elipse:before {
	content: "\f1bc";
}
.icon-roundedrectangle:before {
	content: "\f1bd";
}
.icon-polygon:before {
	content: "\f1be";
}
.icon-zikula:before {
	content: "\f0ac";
}
.icon-oneup:before {
	content: "\f3b7";
}
.icon-vendetta:before {
	content: "\f3c5";
}
.icon-spaceinvaders:before {
	content: "\f352";
}
.icon-fort:before {
	content: "\f400";
}
.icon-uniF487:before {
	content: "\f487";
}
.icon-vinyl:before {
	content: "\f0cc";
}
.icon-matt-hakes-moustache:before {
	content: "\e000";
}
.icon-matt-hakes-spectacles:before {
	content: "\e001";
}
.icon-propellor2:before {
	content: "\e002";
}
.icon-fishes:before {
	content: "\e003";
}
.icon-sea-back:before {
	content: "\e004";
}
.icon-dark-brown-2:before {
	content: "\e005";
}
.icon-jquery:before {
	content: "\f06b";
}
.icon-restart:before {
	content: "\f11f";
}
.icon-periscope3:before {
	content: "\e007";
}
.icon-periscope2:before {
	content: "\e006";
}
.icon-dark-brown3:before {
	content: "\e008";
}

              
            
!

JS

              
                // no one here but us chickens.

              
            
!
999px

Console