.popup_container {
	position: fixed;
	top: 0px;
	left: 0px;
	width: 100%;
	height: 100%;
	z-index: 10;
}

.popup_background {
	position: absolute;
	top: 0px;
	left: 0px;
	width: 100%;
	height: 100%;
	z-index: 15;
	background-color: rgba( 0, 0, 0, 0.5 );
}

.popup_content {
	position: relative;
	margin: 10% auto;
	z-index: 20;
	overflow: auto;
	max-height: 80%
}

.nav-wrapper {
	margin: auto;
	text-align: left;
	padding: 0;
}
.icon {
	box-sizing: border-box;
	display: inline-block;
	width: 19.6%;
	min-width: 120px;
	text-align: center;
	padding: 8px 0;
	margin: 0;
	transition: all 0.6s;
}

.icon:hover {
	background-color: #e9f4fc;
	border-radius: 6px;
	text-decoration: none;
	color: #2a78a2;
}

.icon:active img {
	margin: 13px 0px 7px 0px;
}

.icon img {
	border: none;
	margin: 10px;
}

.controls > .btn {
	margin-right: 10px;
}


/* ---------------------------------------------------------------- */


.tree li.node {
	margin: 0px 0;
	list-style-type: none;
	position: relative;
	padding: 10px 0px 0px 5px;
}

.tree li.node::before{
	content: '';
	position: absolute;
	top: 0;
	width: 1px;
	height: 100%;
	right: auto;
	left: -10px;
	border-left: 1px solid #ccc;
	bottom: 50px;
	z-index: 1;
}
.tree li.node::after{
	content: '';
	position: absolute;
	top: 25px;
	width: 15px;
	height: 20px;
	right: auto;
	left: -10px;
	border-top: 1px solid #ccc;
	z-index: 1;
}

.tree .btn-group > a {
	z-index: 1;
}

/*Remove connectors before root*/
.tree > ul > li.node::before, .tree > ul > li.node::after{
	border: 0;
}
/*Remove connectors after last child*/
.tree li.node:last-child::before{
	height: 25px;
}

.tree-hover > .btn {
	color: #ffffff;
	text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25);
	background-color: #49afcd;
	background-image: linear-gradient(to bottom, #5bc0de, #2f96b4);
	background-repeat: repeat-x;
	border-color: #2f96b4 #2f96b4 #1f6377;
	border-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.25);
}

@media (max-width: 900px) {
	.icon {
		width: 32.7%;
	}
}

@media (max-width: 500px) {
	.icon {
		width: 49.3%;
	}
}