<!-- modified version of Alessio Atzeni's loading animation http://www.alessioatzeni.com/blog/css3-loading-animation/ -->

<ul id="ajax">
    <li>
    <div id="layer1" class="ball"></div> <!-- layer1 control delay animation / ball is effect -->
    <div id="layer7" class="pulse"></div> <!-- layer7 control delay animation / pulse is effect  -->
    </li>
    <li>
    <div id="layer2" class="ball"></div>
    <div id="layer8" class="pulse"></div>
    </li>
    <li>
    <div id="layer3" class="ball"></div>
    <div id="layer9" class="pulse"></div>
    </li>
    <li>
    <div id="layer4" class="ball"></div>
    <div id="layer10" class="pulse"></div>
    </li>
    <li>
    <div id="layer5" class="ball"></div>
    <div id="layer11" class="pulse"></div>
    </li>
</ul>

body {
  background:#111;
}

ul#ajax {
	list-style:none;
	width:75px;
	margin:0 auto;
	padding-top:50px;
	padding-bottom:50px;
}

ul#ajax li { /* Style your list */
	float:left;
	position:relative;
	width:6px;
	height:6px;
	border:1px solid #fff;
	border-radius:50px;
	margin-left:2px;
	border-left:1px solid #111; border-top:1px solid #111; border-right:1px solid #333; border-bottom:1px solid #333; 
	background:#000;
}

ul#ajax li:first-child { margin-left:0; } /* Remove the margin first li element */

.ball { /* Style your ball and set the animation */
	background-color:#2187e7; 
	background-image: -moz-linear-gradient(90deg, #2187e7 25%, #a0eaff); 
	background-image: -webkit-linear-gradient(90deg, #2187e7 25%, #a0eaff); 

	width:6px;
	height:6px;
	border-radius:50px;
	-moz-transform:scale(0);
	-webkit-transform:scale(0);
	
	-moz-animation:loading 1s linear forwards;
	-webkit-animation:loading 1s linear forwards;
}

.pulse { /* Style your second ball to create the amazing effects */
	width:6px;
	height:6px;
	border-radius:30px;
	border: 1px solid #00c6ff;
	box-shadow: 0 0 5px #00c6ff;
	position:absolute;
	top:-1px;
	left:-1px;
	-moz-transform:scale(0);
	-webkit-transform:scale(0);
	
	-webkit-animation:pulse 3s ease-out infinite;
	-moz-animation:pulse 3s ease-out infinite;
}

/* Control Layers */
#layer1 { -moz-animation-delay:0.5s; -webkit-animation-delay:0.5s; }
#layer2 { -moz-animation-delay:1s; -webkit-animation-delay:1s; }
#layer3 { -moz-animation-delay:1.5s; -webkit-animation-delay:1.5s; }
#layer4 { -moz-animation-delay:2s; -webkit-animation-delay:2s; }
#layer5 { -moz-animation-delay:2.5s; -webkit-animation-delay:2.5s; }

#layer7 { -moz-animation-delay:1.5s; -webkit-animation-delay:1.5s; }
#layer8 { -moz-animation-delay:2s; -webkit-animation-delay:2s; }
#layer9 { -moz-animation-delay:2.5s; -webkit-animation-delay:2.5s; }
#layer10 { -moz-animation-delay:3s; -webkit-animation-delay:3s; }
#layer11 { -moz-animation-delay:3.5s; -webkit-animation-delay:3.5s; }

@-moz-keyframes loading {
    0%{-moz-transform:scale(0,0);}
    100%{-moz-transform:scale(1,1);}	
}

@-webkit-keyframes loading {
    0%{-webkit-transform:scale(0,0);}
    100%{-webkit-transform:scale(1,1);}	
}

@-moz-keyframes pulse {
    0%   {-moz-transform: scale(0);opacity: 0;}
    10%  {-moz-transform: scale(1);opacity: 0.5;}
    50%  {-moz-transform: scale(1.75);opacity: 0;}
    100% {-moz-transform: scale(0);opacity: 0;}  
}

@-webkit-keyframes pulse {
    0%   {-webkit-transform: scale(0);opacity: 0;}
    10%  {-webkit-transform: scale(1);opacity: 0.5;}
    50%  {-webkit-transform: scale(1.75);opacity: 0;}
    100% {-webkit-transform: scale(0);opacity: 0;}    
}