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              <!-- header -->
<header id="header">
	<!-- nav -->
	<nav id="main-navbar">
		<div class="container">
			<!-- navigation-header when small screen -->
			<div class="navigation-header">
				<!-- burger-icon when small screen -->
				<a href="#" class="burger-icon toggle-navbar burger-left">
					<span></span><span></span><span></span>
				</a><!-- /burger-icon -->
			</div><!-- /navigation-header -->
			<!-- navbar-nav, main-navbar -->
			<ul class="navbar navigation-nav" id="navbar">
				<li class="active"><a class="" href="#">Home</a></li>
				<li class=""><a class="" href="#">Link 1</a></li>
				<li class="dropdown">
					<a class="dropdown-toggle" href="#">Dropdown&nbsp;&nbsp;&or;</a>
					<ul>
						<li><a href="#">Dropdown link 1</a></li>
						<li><a href="#">Dropdown link 2</a></li>
					</ul>
				</li>
				<li class=""><a class="" href="#">Link 2</a></li>
				<li class=""><a class="" href="#">Another link</a></li>
			</ul><!-- /navbar-nav -->
		</div>
	</nav><!-- /nav -->
</header><!-- /header -->

<!-- section -->
<section class="container">
	
	<div class="jumbotron">
		<h1>Responsive nav</h1>
		
		<p>A simple and responsive navigation with dropdown menu.</p>
	</div>
	
</section><!-- /section -->
            
          
!
            
              /*
Name: Responsive navigation
Author: Jean LAW YIM WAN
Author URI: http://jean-lawyimwan.fr/
Copyright: 2016, Jean LAW YIM WAN
*/

/**
 * Mixins
 */
@mixin clearfix() {
  &:before,
  &:after {
	content: " "; /** 1 */
	display: table; /** 2 */
  }
  &:after {
	clear: both;
  }
}

@mixin format-font($font-size) {
  font-size: $font-size + px;
  line-height: $font-size * 1.5 + px;
  
  &:last-child {
	margin-bottom: 0;
  }
}


@function top-shadow($depth) {
  $primary-offset: nth(1.5 3 10 14 19, $depth) * 1px;
  $blur: nth(1.5 3 10 14 19, $depth) * 4px;
  $color: rgba(black, nth(.12 .16 .19 .25 .30, $depth));
  
  @return 0 $primary-offset $blur $color;
}
@function bottom-shadow($depth) {
  $primary-offset: nth(1.5 3 6 10 15, $depth) * 1px;
  $blur: nth(1 3 3 5 6, $depth) * 4px;
  $color: rgba(black, nth(.24 .23 .23 .22 .22, $depth));
  
  @return 0 $primary-offset $blur $color;
}
@mixin material-shadow($depth) {
  @if $depth < 1 or $depth > 5 {
	box-shadow: none;
  } @else {
	box-shadow: bottom-shadow($depth), top-shadow($depth);
  }
}


/**
 * Variables
 */
$colors: (
  _blue: #317bac,
  _darkBlue: darken(#317bac, 10%),
);


/**
 * Component burger-icon
 */
.burger-icon {
  text-decoration: none;
  color: #FFFFFF;
  display: block;
  cursor: pointer;
  width: 30px;
  height: 30px;
  position: absolute;
  top: 17.5px;
  
  transform: rotate(0deg);
  transition: .5s ease-in-out;
  
  > span {
	display: block;
	position: absolute;
	height: 5px;
	width: 100%;
	background: #FFFFFF;
	border-radius: 2px;
	opacity: 1;
	left: 0;
	
	transform: rotate(0deg);
	transition: .25s ease-in-out;
  }
}

.burger-right {
  right: 15px;
}

.burger-left {
  left: 15px;
}

.burger-icon > span:nth-child(1) {
  top: 0;
  -webkit-transform-origin: left center;
  -moz-transform-origin: left center;
  -o-transform-origin: left center;
  transform-origin: left center;
}

.burger-icon > span:nth-child(2) {
  top: 10px;
  -webkit-transform-origin: left center;
  -moz-transform-origin: left center;
  -o-transform-origin: left center;
  transform-origin: left center;
}

.burger-icon > span:nth-child(3) {
  top: 20px;
  -webkit-transform-origin: left center;
  -moz-transform-origin: left center;
  -o-transform-origin: left center;
  transform-origin: left center;
}

.burger-icon.open > span:nth-child(1) {
  -webkit-transform: rotate(45deg);
  -moz-transform: rotate(45deg);
  -o-transform: rotate(45deg);
  transform: rotate(45deg);
  top: -3px;
  left: 8px;
}

.burger-icon.open > span:nth-child(2) {
  width: 0;
  opacity: 0;
}

.burger-icon.open > span:nth-child(3) {
  -webkit-transform: rotate(-45deg);
  -moz-transform: rotate(-45deg);
  -o-transform: rotate(-45deg);
  transform: rotate(-45deg);
  top: 18px;
  left: 8px;
}

/**
 * Component navbar
 */
#main-navbar {
  background: map-get($colors, _blue);
  
  .container {
	@media (max-width: 992px) {
	  width: 100%;
	  padding-left: 0;
	  padding-right: 0;
	}
  }
}

/** Base class */
.navbar {
  display: block;
  margin-bottom: 0;
  padding-left: 0; // Override default ul/ol
  list-style: none;
  @include clearfix;
  
  @media (max-width: 992px) {
	display: none;
  }
  
  > li {
	position: relative;
	display: block;
	
	> a {
	  position: relative;
	  display: block;
	  padding: 20px 15px;
	  
	  &:hover, &:focus {
		text-decoration: none;
	  }
	}
  }
}

/** Navbar open when small screen */
.navbar.open {
  display: block;
}

/** Responsive navbar */
.navbar > li {
  position: relative;
  @media (max-width: 544px) {
	width: 100%;
  }
  @media (min-width: 544px) and (max-width: 992px) {
	width: 50%;
  }
}


/** navigation-nav */
.navigation-nav {
  border: none;
  
  > li {
	float: left;
	
	> a {
	  color: #FFFFFF;
	  transition: background .2s, color .2s;
	  -webkit-transition: background .2s, color .2s;
	  
	  &:hover {
		background: map-get($colors, _darkBlue);
		color: #FFFFFF;
	  }
	}
	
	
	/** Dropdown menu */
	&.dropdown {
	  &.open { // can add &:hover if needed
		background: map-get($colors, _darkBlue);
		
		> ul {
		  display: block;
		}
	  }
	  
	  
	  > ul {
		z-index: 1000;
		display: none;
		float: left;
		min-width: 170px;
		padding: 0;
		font-size: 14px;
		text-align: left;
		list-style: none;
		background-color: map-get($colors, _blue);
		@include material-shadow(1);
		
		/** Responsive dropdown menu */
		@media (max-width: 992px) {
		  position: relative;
		  width: 100%;
		}
		@media (min-width: 992px) {
		  position: absolute;
		  top: 100%;
		  left: 0;
		}
		
		> li {
		  position: relative;
		  display: block;
		  
		  > a {
			position: relative;
			display: block;
			color: #FFFFFF;
			padding: 5px 15px;
			
			@media (max-width: 992px) {
			  padding: 20px 30px;
			}
			
			&, &:hover, &:focus {
			  text-decoration: none;
			}
			
			&:hover, &:focus {
			  background: map-get($colors, _darkBlue);
			}
		  }
		}
	  }
	}
	
	/** Active state of tab */
	&.active > a {
	  &, &:hover, &:focus {
		color: #FFFFFF;
		background: map-get($colors, _darkBlue);
	  }
	}
  }
}

/** Navigation header when tablet or smartphone */
.navigation-header {
  z-index: 110;
  display: none;
  text-transform: uppercase;
  font-weight: 700;
  @include material-shadow(1);
  background: map-get($colors, _blue);
  height: 60px;
  width: 100%;
  
  position: relative;
  
  > .navigation-brand {
	position: relative;
	display: table;
	color: #FFFFFF;
	padding: 20px 15px;
	background: red;
	
	&, &:hover, &:focus {
	  text-decoration: none;
	}
  }
  
  // show navigation-header when small screen
  @media (max-width: 992px) {
	display: block;
  }
}


/**
 * Core css
 */
html, body {
  margin: 0;
  font-family: Lato, sans-serif;
}

// position of icon
.icon-left {
  position: absolute;
  top: 0;
  left: 0;
  
  span {
	left: 15px;
  }
}

.jumbotron {
  margin-top: 30px;
}
            
          
!
            
              /**
 * @name: Navbar
 * @description: Class nav for controlling the navbar
 */
var Navbar = function(container) {
	var that = this;
	
	this.dom = {};
	this.dom.container = container;
	
	/**
	 * @name: init
	 * @description: Initialize elements
	 */
	this.init = function() {
		this.dom.dropdown = {};
		this.dom.dropdown.elem = this.dom.container.find('.dropdown');
		this.dom.dropdown.toggle = this.dom.container.find('.dropdown-toggle');
		
		/** icons in header-nav */
		this.dom.toggleNavbar = this.dom.container.find('.toggle-navbar');
		
		/** navbar */
		this.dom.navbar = {};
		this.dom.navbar.all = this.dom.container.find('.navbar');
		this.dom.navbar.elem = this.dom.container.find('#navbar');
		
		
		/**
		 * Listen to click on dropdown-toggle item on navbar
		 */
		this.dom.dropdown.toggle.on('click', function(e) {
			e.preventDefault();
			
			var $parent = $(this).parent();
			
			if($parent.hasClass('open')) {
				$parent.removeClass('open');
			}
			else {
				/** Hide all dropdown-menus */
				that.dom.dropdown.elem.removeClass('open');
				
				$parent.addClass('open');
			}
		});
		/**
		 * Listen to click event on burger-icon
		 */
		this.dom.toggleNavbar.on('click', function(e) {
			e.preventDefault();
			
			that.showNavbar('navbar');
		});
		/**
		 * @name: showNavbar
		 * @param:
		 * @description: display the targetted element
		 */
		this.showNavbar = function() {
			if(that.dom.navbar.elem.hasClass('open')) {
				that.dom.navbar.elem.removeClass('open');
				that.dom.toggleNavbar.removeClass('open');
			}
			else {
				that.hideNavbar();
				that.dom.navbar.elem.addClass('open');
				that.dom.toggleNavbar.addClass('open');
			}
		};
		/**
		 * @name: hideNavbar
		 * @param: -
		 * @description: hide all navbars
		 */
		this.hideNavbar = function() {
			that.dom.navbar.all.removeClass('open');
			/** close burger-icon */
			that.dom.toggleNavbar.removeClass('open');
		};
	};
};

var navbar = new Navbar($('#main-navbar'));
navbar.init();
            
          
!
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