nav li{
	list-style-type: none;
	float: left;
	padding: 15px 15px;	
}
nav li a{
	display: block;
	position: relative;
	color: lightgrey;
	text-align: center;
	text-decoration: none;
}
nav li a:hover{

}

.navbar-toggle {
	position: relative;
	float: left;
	padding-left: 15px;
}
.navbar-toggle .sr-only {
	position: absolute;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
}

.navbar-toggle .icon-bar {
	margin-top: 21px;
	display: block;
	width: 22px;
	height: 2px;
	border-radius: 1px;
	background-color: white;
	transition: all 0.2s;
}

.navbar-toggle .icon-bar + .icon-bar {
	margin-top: 4px;
}

.nav:after,
.nav:before,
ul.navbar:after,
ul.navbar:before,
.navbar-header:after,
.navbar-header:before {
	content: "";
	display: table;
}

.nav:after,
ul.navbar:after,
.navbar-header:after {
	clear: both;
}

.nav,
ul.navbar,
.navbar-header {
	zoom: 1;
	box-shadow: 0 2px 5px 0 rgba(0,0,0,0.16), 0 2px 10px 0 rgba(0,0,0,0.12)
}

nav,
footer {
	z-index: 100;
}



nav img.logo_seo {
	float: right;
	background-image: url("/images/logo_seo.png");
	margin-top: 4px;
	margin-left: 10px;
	background-color: inherit;
	background-repeat: no-repeat;
	border-radius: 20px;
	border-color: white;
	width: 20px;
	height: 20px;
}

@media (min-width: 768px){	
	nav {
		width: 100%;
		position: fixed;
	}
	div#fullpage {
		padding-top: 68px;
	}
	.navbar-header {
		position: relative;
		float: left;
		top: 0;
  		border-width: 0 0 1px;
		background: grey;
	}
	.navbar-toggle .icon-bar{
		display: none;
	}
	.navbar-header a{
		display: block;
		text-decoration: none;
	}
	ul.navbar {
		margin-top:0px;
		margin-bottom:0px;
		list-style-type:none;
		background-color: hsl(0,0%,20%); /* black in 20% lightness */
	}
	ul.navbar > li {
		float: left;
		padding: 15px 15px;
	}
	ul.navbar > li a {
		display: block;
		position: relative;
		color: white;
		text-align: center;
		text-decoration: none;
	}
	ul.navbar > li a:hover {

	}
}

@media (max-width: 767px){
	nav {
	    position: fixed;
    	right: 0;
    	left: 0;
    	z-index: 1030;
    	top: 0;
		height:58px;
	}
	.navbar-header {
		position: relative;
		z-index: 10;
		top: 0;
  		border-width: 0 0 1px;
		background: grey;
	}
	.navbar-toggle .icon-bar{
		display: show;
	}
	.navbar-header a{
		display: block;
		text-decoration: none;
	}
	ul.navbar {
		list-style-type:none;
		overflow: hidden;
		background-color: hsl(0,0%,20%); /* black in 20% lightness */
		margin-top: 0;
		transition: 0.6s;
		backface-visibility: hidden;
		padding-left: 0;
		float: left;
		background: grey;
		margin-left: -80%;
		width: 79%;
	}
	ul.navbar > li {
		float: none;
		padding: 15px 15px;
		padding-right: 0px;
		-webkit-padding-start: 0px;
	}
	ul.navbar > li:after {
		content: "";
		display: block;
		border: 0;
		width:40%;
		margin: auto;
		height:2px;
		/* background: radial-gradient(ellipse at 50% 50%,  rgba(0,0,0,0.6) 0,rgba(255,255,255,0) 70%); *//* W3C */
		background: radial-gradient(ellipse at 50% 50%,  rgba(0,0,0,0.6) 0,rgba(0,0,0,0.2) 70%);
	}
	ul.navbar > li a {
		display: block;
		position: relative;
		color: white;
		text-align: center;
		text-decoration: none;
	}
	ul.navbar > li a:hover {

	}
	
	nav ul.navbar { /* https://drafts.csswg.org/selectors-4/#the-nth-child-pseudo */
		margin-left: -80%;
		width: 79%;/* sarafi width */
		           /* 44.9%; Chrome Browser*/
	}
	
	nav ul.navbar.collapsed {
		margin-left: 0;
	}
	
}

.navbar-toggle.collapsed > .icon-bar:nth-child(2) {
  	transform: rotate(45deg);
  	transform-origin: 0% 0%;
}

.navbar-toggle.collapsed > .icon-bar:nth-child(3) {
	opacity: 0;
}

.navbar-toggle.collapsed > .icon-bar:last-child {
  	transform: rotate(-45deg);
  	transform-origin: 0% 90%;
}


.navbar-toggle > .icon-bar:first-child {
	transform: rotate(0);
}

.navbar-toggle > .icon-bar:nth-child(2) {
	opacity: 1;
}

.navbar-toggle > .icon-bar:last-child {
	transform: rotate(0);
}