"loading"
Bootstrap 3.0.0 Snippet by Pawan Singhania

<link href="//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script> <script src="//code.jquery.com/jquery-1.11.1.min.js"></script> <!------ Include the above in your HEAD tag ----------> <div class="col-sm-1 box"></div>
body { margin:0; padding:80px; } .main { margin: auto; padding: 0; width: 90%; } .box { margin: 0; padding: 0; border-width:100px; border-style: solid; border-color: #000; animation-name:first; animation-duration:1s; animation-iteration-count:infinite; } @keyframes first { 0% {border-color: #000 transparent transparent transparent;} 25% {border-color:transparent #000 transparent transparent;} 50% {border-color:transparent transparent #000 transparent;} 75% {border-color:transparent transparent transparent #000;} 100% {border-color: #000 transparent transparent transparent; } }

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