Ajax Loader
HTML 
<div id="container">
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<div id="container">
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  <ul>
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    <li><a href="#">Home</a></li>
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    <li><a href="#">Blog</a></li>
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    <li><a href="#">Contact</a></li>
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  </ul>
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</div>
 
CSS 
body {
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body {
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  background: #333;
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  text-align: center;
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}
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#container {
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  display: inline-block;
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  padding: 5px;
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  margin: 60px;
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  background: rgba(0,0,0,0.1);
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  position: relative;
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  -webkit-border-radius: 100px;
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  -moz-border-radius: 100px;
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  border-radius: 100px;
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  -webkit-box-shadow: inset 0px 1px 2px 0px rgba(0,0,0,0.4), 0px 1px 1px 0px rgba(255,255,255,.1);
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  -moz-box-shadow: inset 0px 1px 2px 0px rgba(0,0,0,0.4), 0px 1px 1px 0px rgba(255,255,255,.1);
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  box-shadow: inset 0px 1px 2px 0px rgba(0,0,0,0.4), 0px 1px 1px 0px rgba(255,255,255,.1);
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  -webkit-transition: all .2s ease;
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  -moz-transition: all .2s ease;
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  -ms-transition: all .2s ease;
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  -o-transition: all .2s ease;
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  transition: all .2s ease;
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}
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#container ul {
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  padding: 0;
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  height: 40px;
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  margin: 0;
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  list-style: none;
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  overflow: hidden;
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  -webkit-box-shadow: inset 0px 1px 1px 0px rgba(255,255,255,.2), 0px 1px 2px 0px rgba(0,0,0,0.5);
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  -moz-box-shadow: inset 0px 1px 1px 0px rgba(255,255,255,.2), 0px 1px 2px 0px rgba(0,0,0,0.5);
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  box-shadow: inset 0px 1px 1px 0px rgba(255,255,255,.2), 0px 1px 2px 0px rgba(0,0,0,0.5);
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  background: #5c6063;
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  background-image: -moz-linear-gradient(top, rgba(0,0,0,0) 0%, rgba(0,0,0,0.3) 100%);
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  background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(0,0,0,0)), color-stop(100%,rgba(0,0,0,0.3)));
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  background-image: -webkit-linear-gradient(top, rgba(0,0,0,0) 0%,rgba(0,0,0,0.3) 100%);
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  background-image: -o-linear-gradient(top, rgba(0,0,0,0) 0%,rgba(0,0,0,0.3) 100%);
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  background-image: -ms-linear-gradient(top, rgba(0,0,0,0) 0%,rgba(0,0,0,0.3) 100%);
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  background-image: linear-gradient(top, rgba(0,0,0,0) 0%,rgba(0,0,0,0.3) 100%);
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  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#00000000', endColorstr='#4d000000',GradientType=0 );
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  -webkit-border-radius: 100px;
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  -moz-border-radius: 100px;
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  border-radius: 100px;
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}
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#container ul li {
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  background: rgba(255,255,255,0.0);
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  float: left;
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  text-align: center;
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  border-right: 1px solid #666;
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  border-left: 1px solid #444;
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  -webkit-box-sizing: border-box;
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  -moz-box-sizing: border-box;
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  box-sizing: border-box;
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  -webkit-transition: all .2s ease;
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  -moz-transition: all .2s ease;
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  -ms-transition: all .2s ease;
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  -o-transition: all .2s ease;
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  transition: all .2s ease;
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}
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#container ul li:hover {
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  background: rgba(255,255,255,0.08);
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}
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#container ul li:active {
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  background: rgba(0,0,0,0.08);
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}
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#container ul li:first-child {
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  border-left: none;
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  -webkit-border-radius: 100px 0 0 100px;
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  -moz-border-radius: 100px 0 0 100px;
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  border-radius: 100px 0 0 100px;
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}
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#container ul li:last-child {
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  border-right: none;
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  -webkit-border-radius: 0 100px 100px 0;
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  -moz-border-radius: 0 100px 100px 0;
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  border-radius: 0 100px 100px 0;
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}
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#container ul li a{
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  text-decoration: none;
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  font: 11px/41px Arial, sans-serif;
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  color: #ddd;
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  text-transform: uppercase;
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  text-shadow: 0px 1px rgba(0,0,0,0.5);
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  padding: 35px;
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}
 

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