Bootstrap Ui-Kit-Metro Like Nav


<div class="container">
    <div class="row">
		<div class="btn-group btn-group-justified">
            <div class="btn-group">
                <button type="button" class="btn btn-nav">
                    <span class="glyphicon glyphicon-folder-close"></span>
    			    <p>Shopping</p>
                </button>
            </div>
            <div class="btn-group">
                <button type="button" class="btn btn-nav">
                    <span class="glyphicon glyphicon-calendar"></span>
    			    <p>Calendar</p>
                </button>
            </div>
            <div class="btn-group">
                <button type="button" class="btn btn-nav">
                    <span class="glyphicon glyphicon-globe"></span>
    			    <p>Network</p>
                </button>
            </div>
            <div class="btn-group">
                <button type="button" class="btn btn-nav">
                    <span class="glyphicon glyphicon-leaf"></span>
    			    <p>Ecology</p>
                </button>
            </div>
            <div class="btn-group">
                <button type="button" class="btn btn-nav">
                    <span class="glyphicon glyphicon-time"></span>
    			    <p>Statistics</p>
                </button>
            </div>
            <div class="btn-group">
                <button type="button" class="btn btn-nav">
                    <span class="glyphicon glyphicon-bell"></span>
    			    <p>Events</p>
                </button>
            </div>
        </div>
	</div>
</div>


*, *:before, *:after {
  /* Chrome 9-, Safari 5-, iOS 4.2-, Android 3-, Blackberry 7- */
  -webkit-box-sizing: border-box; 

  /* Firefox (desktop or Android) 28- */
  -moz-box-sizing: border-box;

  /* Firefox 29+, IE 8+, Chrome 10+, Safari 5.1+, Opera 9.5+, iOS 5+, Opera Mini Anything, Blackberry 10+, Android 4+ */
  box-sizing: border-box;
}
body {
    background: url(http://habrastorage.org/files/90a/010/3e8/90a0103e8ec749c4843ffdd8697b10e2.jpg);
    text-align: center;
    padding-top: 40px;
}
.btn-nav {
    background-color: #fff;
    border: 1px solid #e0e1db;
    -webkit-box-sizing: border-box; /* Safari/Chrome, other WebKit */
    -moz-box-sizing: border-box;    /* Firefox, other Gecko */
    box-sizing: border-box;         /* Opera/IE 8+ */
}
.btn-nav:hover {
    color: #e92d00;
    cursor: pointer;
    -webkit-transition: color 1s; /* For Safari 3.1 to 6.0 */
    transition: color 1s;
}
.btn-nav.active {
    color: #e92d00;
    padding: 2px;
	border-top: 6px solid #e92d00;
	border-bottom: 6px solid #e92d00;
    border-left: 0;
    border-right: 0;
    box-sizing:border-box;
    -moz-box-sizing:border-box;
    -webkit-box-sizing:border-box;
    -webkit-transition: border 0.3s ease-out, color 0.3s ease 0.5s;
    -moz-transition: border 0.3s ease-out, color 0.3s ease 0.5s;
    -ms-transition: border 0.3s ease-out, color 0.3s ease 0.5s; /* IE10 is actually unprefixed */
    -o-transition: border 0.3s ease-out, color 0.3s ease 0.5s;
    transition: border 0.3s ease-out, color 0.3s ease 0.5s;
    -webkit-animation: pulsate 1.2s linear infinite;
    animation: pulsate 1.2s linear infinite;
}
.btn-nav.active:before {
	content: '';
	position: absolute;
	border-style: solid;
	border-width: 6px 6px 0;
	border-color: #e92d00 transparent;
	display: block;
	width: 0;
	z-index: 1;
	margin-left: -6px;
	top: 0;
	left: 50%;
}
.btn-nav .glyphicon {
    padding-top: 16px;
	font-size: 40px;
}
.btn-nav.active p {
    margin-bottom: 8px;
}
@-webkit-keyframes pulsate {
 50% { color: #000; }
}
@keyframes pulsate {
 50% { color: #000; }
}
@media (max-width: 480px) {
    .btn-group {
        display: block !important;
        float: none !important;
        width: 100% !important;
        max-width: 100% !important;
    }
}
@media (max-width: 600px) {
    .btn-nav .glyphicon {
        padding-top: 12px;
        font-size: 26px;
    }
}
    

	var activeEl = 2;
$(function() {
    var items = $('.btn-nav');
    $( items[activeEl] ).addClass('active');
    $( ".btn-nav" ).click(function() {
        $( items[activeEl] ).removeClass('active');
        $( this ).addClass('active');
        activeEl = $( ".btn-nav" ).index( this );
    });
});