content logo

Bootstrap Headers:

Bootstrap Dark/Light Switching Header Menu

The default theme of most websites is normally light. However, some websites use a darker theme. A dark theme displays the majority of the user interface in a darker – usually grey – colour which reduces the luminance from device screens. This helps your eyes to avoid getting tired soon and prevents eye strain. Du to this fact, dark themes have become increasingly popular lately and a lot of famous website have added an option to switch back and forth between these two themes whenever you need to. For instance, at night, people tend to use the darker theme due to lack of light. Basically, you have a button, slider, etc. to toggle on and off which then makes the entire user interface either light or dark. The option is a nice touch to any website although it is not necessary.

If you are interested to have such feature in your own website as well, then check our Bootstrap menu colour change code below. It features a slider to switch between two themes. The Bootstrap header switch theme colour is fully designed and the entire UI will change depending on which theme you are using. For example, the light theme uses black texts on a white background and the dark one uses a dark shade of grey as background colour with white text on top of it. the Bootstrap dark light change template is available below this post.

#

Bootstrap Menu Color Change

#

Bootstrap Dark Light Change

#

Bootstrap Header Switch Theme Color

<!-- This script got from frontendfreecode.com -->
<div class="navigation-wrap bg-light start-header start-style">
	<div class="container">
		<div class="row">
			<div class="col-12">
				<nav class="navbar navbar-expand-md navbar-light">
					<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
						<span class="navbar-toggler-icon"></span>
					</button>
					<div class="collapse navbar-collapse" id="navbarSupportedContent">
						<ul class="navbar-nav ml-auto py-4 py-md-0">
							<li class="nav-item pl-4 pl-md-0 ml-0 ml-md-4 active">
								<a class="nav-link dropdown-toggle" data-toggle="dropdown" href="#" role="button" aria-haspopup="true" aria-expanded="false">Home</a>
								<div class="dropdown-menu">
									<a class="dropdown-item" href="#">Action</a>
									<a class="dropdown-item" href="#">Another action</a>
									<a class="dropdown-item" href="#">Something else here</a>
									<a class="dropdown-item" href="#">Another action</a>
								</div>
							</li>
							<li class="nav-item pl-4 pl-md-0 ml-0 ml-md-4">
								<a class="nav-link" href="#">Portfolio</a>
							</li>
							<li class="nav-item pl-4 pl-md-0 ml-0 ml-md-4">
								<a class="nav-link" href="#">Agency</a>
							</li>
							<li class="nav-item pl-4 pl-md-0 ml-0 ml-md-4">
								<a class="nav-link dropdown-toggle" data-toggle="dropdown" href="#" role="button" aria-haspopup="true" aria-expanded="false">Services</a>
								<div class="dropdown-menu">
									<a class="dropdown-item" href="#">Action</a>
									<a class="dropdown-item" href="#">Another action</a>
									<a class="dropdown-item" href="#">Something else here</a>
									<a class="dropdown-item" href="#">Another action</a>
								</div>
							</li>
							<li class="nav-item pl-4 pl-md-0 ml-0 ml-md-4">
								<a class="nav-link" href="#">Journal</a>
							</li>
							<li class="nav-item pl-4 pl-md-0 ml-0 ml-md-4">
								<a class="nav-link" href="#">Contact</a>
							</li>
						</ul>
					</div>
					
				</nav>		
			</div>
		</div>
	</div>
</div>
<div class="section full-height">
	<div class="absolute-center">
		<div class="section">
			<div class="container">
				<div class="row">
					<div class="col-12">
			<h1><span>B</span><span>o</span><span>o</span><span>t</span><span>s</span><span>t</span><span>r</span><span>a</span><span>p</span> <span>4</span><br>
			<span>m</span><span>e</span><span>n</span><span>u</span></h1>
			<p>scroll for nav animation</p>	
					</div>	
				</div>		
			</div>		
		</div>
		<div class="section mt-5">
			<div class="container">
				<div class="row">
					<div class="col-12">
						<div id="switch">
							<div id="circle"></div>
						</div>
					</div>	
				</div>		
			</div>			
		</div>
	</div>
</div>
<div class="my-5 py-5">
</div><a style="font-size: 8pt; text-decoration: none" target="_blank" href="http://frontendfreecode.com">Free Frontend</a>
                                                                            
@import url('https://fonts.googleapis.com/css?family=Poppins:100,100i,200,200i,300,300i,400,400i,500,500i,600,600i,700,700i,800,800i,900,900i&subset=devanagari,latin-ext');

/* #Primary
================================================== */

body{
    font-family: 'Poppins', sans-serif;
	font-size: 16px;
	line-height: 24px;
	font-weight: 400;
	color: #212112;
	background-image: url('http://frontendfreecode.com/codes/files/pat-back.svg');
	background-position: center;
	background-repeat: repeat;
	background-size: 7%;
	background-color: #fff;
	overflow-x: hidden;
    transition: all 200ms linear;
}
::selection {
	color: #fff;
	background-color: #8167a9;
}
::-moz-selection {
	color: #fff;
	background-color: #8167a9;
}


/* #Navigation
================================================== */

.start-header {
	opacity: 1;
	transform: translateY(0);
	padding: 20px 0;
	box-shadow: 0 10px 30px 0 rgba(138, 155, 165, 0.15);
	-webkit-transition : all 0.3s ease-out;
	transition : all 0.3s ease-out;
}
.start-header.scroll-on {
	box-shadow: 0 5px 10px 0 rgba(138, 155, 165, 0.15);
	padding: 10px 0;
	-webkit-transition : all 0.3s ease-out;
	transition : all 0.3s ease-out;
}
.start-header.scroll-on .navbar-brand img{
	height: 24px;
	-webkit-transition : all 0.3s ease-out;
	transition : all 0.3s ease-out;
}
.navigation-wrap{
	position: fixed;
	width: 100%;
	top: 0;
	left: 0;
	z-index: 1000;
	-webkit-transition : all 0.3s ease-out;
	transition : all 0.3s ease-out;
}
.navbar{
	padding: 0;
}
.navbar-brand img{
	height: 28px;
	width: auto;
	display: block;
  filter: brightness(10%);
	-webkit-transition : all 0.3s ease-out;
	transition : all 0.3s ease-out;
}
.navbar-toggler {
	float: right;
	border: none;
	padding-right: 0;
}
.navbar-toggler:active,
.navbar-toggler:focus {
	outline: none;
}
.navbar-light .navbar-toggler-icon {
	width: 24px;
	height: 17px;
	background-image: none;
	position: relative;
	border-bottom: 1px solid #000;
    transition: all 300ms linear;
}
.navbar-light .navbar-toggler-icon:after, 
.navbar-light .navbar-toggler-icon:before{
	width: 24px;
	position: absolute;
	height: 1px;
	background-color: #000;
	top: 0;
	left: 0;
	content: '';
	z-index: 2;
    transition: all 300ms linear;
}
.navbar-light .navbar-toggler-icon:after{
	top: 8px;
}
.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon:after {
	transform: rotate(45deg);
}
.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon:before {
	transform: translateY(8px) rotate(-45deg);
}
.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon {
	border-color: transparent;
}
.nav-link{
	color: #212121 !important;
	font-weight: 500;
    transition: all 200ms linear;
}
.nav-item:hover .nav-link{
	color: #8167a9 !important;
}
.nav-item.active .nav-link{
	color: #777 !important;
}
.nav-link {
	position: relative;
	padding: 5px 0 !important;
	display: inline-block;
}
.nav-item:after{
	position: absolute;
	bottom: -5px;
	left: 0;
	width: 100%;
	height: 2px;
	content: '';
	background-color: #8167a9;
	opacity: 0;
    transition: all 200ms linear;
}
.nav-item:hover:after{
	bottom: 0;
	opacity: 1;
}
.nav-item.active:hover:after{
	opacity: 0;
}
.nav-item{
	position: relative;
    transition: all 200ms linear;
}

/* #Primary style
================================================== */

.bg-light {
	background-color: #fff !important;
    transition: all 200ms linear;
}
.section {
    position: relative;
	width: 100%;
	display: block;
}
.full-height {
    height: 100vh;
}
.over-hide {
    overflow: hidden;
}
.absolute-center {
	position: absolute;
	top: 50%;
	left: 0;
	width: 100%;
  margin-top: 40px;
	transform: translateY(-50%);
	z-index: 20;
}
h1{
	font-size: 48px;
	line-height: 1.2;
	font-weight: 700;
	color: #212112;
	text-align: center;
}
p{
	text-align: center;
	margin: 0;
	padding-top: 10px;
	opacity: 1;
	transform: translate(0);
    transition: all 300ms linear;
    transition-delay: 1700ms;
}
body.hero-anime p{
	opacity: 0;
	transform: translateY(40px);
    transition-delay: 1700ms;
}
h1 span{
	display: inline-block;
    transition: all 300ms linear;
	opacity: 1;
	transform: translate(0);
}
body.hero-anime h1 span:nth-child(1){
	opacity: 0;
	transform: translateY(-20px);
}
body.hero-anime h1 span:nth-child(2){
	opacity: 0;
	transform: translateY(-30px);
}
body.hero-anime h1 span:nth-child(3){
	opacity: 0;
	transform: translateY(-50px);
}
body.hero-anime h1 span:nth-child(4){
	opacity: 0;
	transform: translateY(-10px);
}
body.hero-anime h1 span:nth-child(5){
	opacity: 0;
	transform: translateY(-50px);
}
body.hero-anime h1 span:nth-child(6){
	opacity: 0;
	transform: translateY(-20px);
}
body.hero-anime h1 span:nth-child(7){
	opacity: 0;
	transform: translateY(-40px);
}
body.hero-anime h1 span:nth-child(8){
	opacity: 0;
	transform: translateY(-10px);
}
body.hero-anime h1 span:nth-child(9){
	opacity: 0;
	transform: translateY(-30px);
}
body.hero-anime h1 span:nth-child(10){
	opacity: 0;
	transform: translateY(-20px);
}
h1 span:nth-child(1){
    transition-delay: 1000ms;
}
h1 span:nth-child(2){
    transition-delay: 700ms;
}
h1 span:nth-child(3){
    transition-delay: 900ms;
}
h1 span:nth-child(4){
    transition-delay: 800ms;
}
h1 span:nth-child(5){
    transition-delay: 1000ms;
}
h1 span:nth-child(6){
    transition-delay: 700ms;
}
h1 span:nth-child(7){
    transition-delay: 900ms;
}
h1 span:nth-child(8){
    transition-delay: 800ms;
}
h1 span:nth-child(9){
    transition-delay: 600ms;
}
h1 span:nth-child(10){
    transition-delay: 700ms;
}
body.hero-anime h1 span:nth-child(11){
	opacity: 0;
	transform: translateY(30px);
}
body.hero-anime h1 span:nth-child(12){
	opacity: 0;
	transform: translateY(50px);
}
body.hero-anime h1 span:nth-child(13){
	opacity: 0;
	transform: translateY(20px);
}
body.hero-anime h1 span:nth-child(14){
	opacity: 0;
	transform: translateY(30px);
}
body.hero-anime h1 span:nth-child(15){
	opacity: 0;
	transform: translateY(50px);
}
h1 span:nth-child(11){
    transition-delay: 1300ms;
}
h1 span:nth-child(12){
    transition-delay: 1500ms;
}
h1 span:nth-child(13){
    transition-delay: 1400ms;
}
h1 span:nth-child(14){
    transition-delay: 1200ms;
}
h1 span:nth-child(15){
    transition-delay: 1450ms;
}
#switch,
#circle {
	cursor: pointer;
	-webkit-transition: all 300ms linear;
	transition: all 300ms linear; 
} 
#switch {
	width: 60px;
	height: 8px;
	border: 2px solid #8167a9;
	border-radius: 27px;
	background: #000;
	position: relative;
	display: block;
	margin: 0 auto;
	text-align: center;
	opacity: 1;
	transform: translate(0);
    transition: all 300ms linear;
    transition-delay: 1900ms;
}
body.hero-anime #switch{
	opacity: 0;
	transform: translateY(40px);
    transition-delay: 1900ms;
}
#circle {
	position: absolute;
	top: -11px;
	left: -13px;
	width: 26px;
	height: 26px;
	border-radius: 50%;
	background: #000;
}
.switched {
	border-color: #000 !important;
	background: #8167a9 !important;
}
.switched #circle {
	left: 43px;
	box-shadow: 0 4px 4px rgba(26,53,71,0.25), 0 0 0 1px rgba(26,53,71,0.07);
	background: #fff;
}
.nav-item .dropdown-menu {
    transform: translate3d(0, 10px, 0);
    visibility: hidden;
    opacity: 0;
	max-height: 0;
    display: block;
	padding: 0;
	margin: 0;
    transition: all 200ms linear;
}
.nav-item.show .dropdown-menu {
    opacity: 1;
    visibility: visible;
	max-height: 999px;
    transform: translate3d(0, 0px, 0);
}
.dropdown-menu {
	padding: 10px!important;
	margin: 0;
	font-size: 13px;
	letter-spacing: 1px;
	color: #212121;
	background-color: #fcfaff;
	border: none;
	border-radius: 3px;
	box-shadow: 0 5px 10px 0 rgba(138, 155, 165, 0.15);
    transition: all 200ms linear;
}
.dropdown-toggle::after {
	display: none;
}

.dropdown-item {
	padding: 3px 15px;
	color: #212121;
	border-radius: 2px;
    transition: all 200ms linear;
}
.dropdown-item:hover, 
.dropdown-item:focus {
	color: #fff;
	background-color: rgba(129,103,169,.6);
}

body.dark{
	color: #fff;
	background-color: #1f2029;
}
body.dark .navbar-brand img{
  filter: brightness(100%);
}
body.dark h1{
	color: #fff;
}
body.dark h1 span{
    transition-delay: 0ms !important;
}
body.dark p{
	color: #fff;
    transition-delay: 0ms !important;
}
body.dark .bg-light {
	background-color: #14151a !important;
}
body.dark .start-header {
	box-shadow: 0 10px 30px 0 rgba(0, 0, 0, 0.15);
}
body.dark .start-header.scroll-on {
	box-shadow: 0 5px 10px 0 rgba(0, 0, 0, 0.15);
}
body.dark .nav-link{
	color: #fff !important;
}
body.dark .nav-item.active .nav-link{
	color: #999 !important;
}
body.dark .dropdown-menu {
	color: #fff;
	background-color: #1f2029;
	box-shadow: 0 5px 10px 0 rgba(0, 0, 0, 0.25);
}
body.dark .dropdown-item {
	color: #fff;
}
body.dark .navbar-light .navbar-toggler-icon {
	border-bottom: 1px solid #fff;
}
body.dark .navbar-light .navbar-toggler-icon:after, 
body.dark .navbar-light .navbar-toggler-icon:before{
	background-color: #fff;
}
body.dark .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon {
	border-color: transparent;
}



/* #Media
================================================== */

@media (max-width: 767px) { 
	h1{
		font-size: 38px;
	}
	.nav-item:after{
		display: none;
	}
	.nav-item::before {
		position: absolute;
		display: block;
		top: 15px;
		left: 0;
		width: 11px;
		height: 1px;
		content: "";
		border: none;
		background-color: #000;
		vertical-align: 0;
	}
	.dropdown-toggle::after {
		position: absolute;
		display: block;
		top: 10px;
		left: -23px;
		width: 1px;
		height: 11px;
		content: "";
		border: none;
		background-color: #000;
		vertical-align: 0;
		transition: all 200ms linear;
	}
	.dropdown-toggle[aria-expanded="true"]::after{
		transform: rotate(90deg);
		opacity: 0;
	}
	.dropdown-menu {
		padding: 0 !important;
		background-color: transparent;
		box-shadow: none;
		transition: all 200ms linear;
	}
	.dropdown-toggle[aria-expanded="true"] + .dropdown-menu {
		margin-top: 10px !important;
		margin-bottom: 20px !important;
	}
	body.dark .nav-item::before {
		background-color: #fff;
	}
	body.dark .dropdown-toggle::after {
		background-color: #fff;
	}
	body.dark .dropdown-menu {
		background-color: transparent;
		box-shadow: none;
	}
}

/* #Link to page
================================================== */

.logo {
	position: absolute;
	bottom: 30px;
	right: 30px;
	display: block;
	z-index: 100;
	transition: all 250ms linear;
}
.logo img {
	height: 26px;
	width: auto;
	display: block;
  filter: brightness(10%);
	transition: all 250ms linear;
}
body.dark .logo img {
  filter: brightness(100%);
}
(function ($) {"use strict";

  $(function () {
    var header = $(".start-style");
    $(window).scroll(function () {
      var scroll = $(window).scrollTop();

      if (scroll >= 10) {
        header.removeClass('start-style').addClass("scroll-on");
      } else {
        header.removeClass("scroll-on").addClass('start-style');
      }
    });
  });

  //Animation

  $(document).ready(function () {
    $('body.hero-anime').removeClass('hero-anime');
  });

  //Menu On Hover

  $('body').on('mouseenter mouseleave', '.nav-item', function (e) {
    if ($(window).width() > 750) {
      var _d = $(e.target).closest('.nav-item');_d.addClass('show');
      setTimeout(function () {
        _d[_d.is(':hover') ? 'addClass' : 'removeClass']('show');
      }, 1);
    }
  });

  //Switch light/dark

  $("#switch").on('click', function () {
    if ($("body").hasClass("dark")) {
      $("body").removeClass("dark");
      $("#switch").removeClass("switched");
    } else
    {
      $("body").addClass("dark");
      $("#switch").addClass("switched");
    }
  });

})(jQuery);
<link rel='stylesheet' href='https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.3/css/bootstrap.min.css'>
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js'></script>
<script src='https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js'></script>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<!-- This script got from frontendfreecode.com -->

<link rel='stylesheet' href='https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.3/css/bootstrap.min.css'>
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js'></script>
<script src='https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js'></script>
<style>
@import url('https://fonts.googleapis.com/css?family=Poppins:100,100i,200,200i,300,300i,400,400i,500,500i,600,600i,700,700i,800,800i,900,900i&subset=devanagari,latin-ext');

/* #Primary
================================================== */

body{
    font-family: 'Poppins', sans-serif;
	font-size: 16px;
	line-height: 24px;
	font-weight: 400;
	color: #212112;
	background-image: url('http://frontendfreecode.com/codes/files/pat-back.svg');
	background-position: center;
	background-repeat: repeat;
	background-size: 7%;
	background-color: #fff;
	overflow-x: hidden;
    transition: all 200ms linear;
}
::selection {
	color: #fff;
	background-color: #8167a9;
}
::-moz-selection {
	color: #fff;
	background-color: #8167a9;
}


/* #Navigation
================================================== */

.start-header {
	opacity: 1;
	transform: translateY(0);
	padding: 20px 0;
	box-shadow: 0 10px 30px 0 rgba(138, 155, 165, 0.15);
	-webkit-transition : all 0.3s ease-out;
	transition : all 0.3s ease-out;
}
.start-header.scroll-on {
	box-shadow: 0 5px 10px 0 rgba(138, 155, 165, 0.15);
	padding: 10px 0;
	-webkit-transition : all 0.3s ease-out;
	transition : all 0.3s ease-out;
}
.start-header.scroll-on .navbar-brand img{
	height: 24px;
	-webkit-transition : all 0.3s ease-out;
	transition : all 0.3s ease-out;
}
.navigation-wrap{
	position: fixed;
	width: 100%;
	top: 0;
	left: 0;
	z-index: 1000;
	-webkit-transition : all 0.3s ease-out;
	transition : all 0.3s ease-out;
}
.navbar{
	padding: 0;
}
.navbar-brand img{
	height: 28px;
	width: auto;
	display: block;
  filter: brightness(10%);
	-webkit-transition : all 0.3s ease-out;
	transition : all 0.3s ease-out;
}
.navbar-toggler {
	float: right;
	border: none;
	padding-right: 0;
}
.navbar-toggler:active,
.navbar-toggler:focus {
	outline: none;
}
.navbar-light .navbar-toggler-icon {
	width: 24px;
	height: 17px;
	background-image: none;
	position: relative;
	border-bottom: 1px solid #000;
    transition: all 300ms linear;
}
.navbar-light .navbar-toggler-icon:after, 
.navbar-light .navbar-toggler-icon:before{
	width: 24px;
	position: absolute;
	height: 1px;
	background-color: #000;
	top: 0;
	left: 0;
	content: '';
	z-index: 2;
    transition: all 300ms linear;
}
.navbar-light .navbar-toggler-icon:after{
	top: 8px;
}
.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon:after {
	transform: rotate(45deg);
}
.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon:before {
	transform: translateY(8px) rotate(-45deg);
}
.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon {
	border-color: transparent;
}
.nav-link{
	color: #212121 !important;
	font-weight: 500;
    transition: all 200ms linear;
}
.nav-item:hover .nav-link{
	color: #8167a9 !important;
}
.nav-item.active .nav-link{
	color: #777 !important;
}
.nav-link {
	position: relative;
	padding: 5px 0 !important;
	display: inline-block;
}
.nav-item:after{
	position: absolute;
	bottom: -5px;
	left: 0;
	width: 100%;
	height: 2px;
	content: '';
	background-color: #8167a9;
	opacity: 0;
    transition: all 200ms linear;
}
.nav-item:hover:after{
	bottom: 0;
	opacity: 1;
}
.nav-item.active:hover:after{
	opacity: 0;
}
.nav-item{
	position: relative;
    transition: all 200ms linear;
}

/* #Primary style
================================================== */

.bg-light {
	background-color: #fff !important;
    transition: all 200ms linear;
}
.section {
    position: relative;
	width: 100%;
	display: block;
}
.full-height {
    height: 100vh;
}
.over-hide {
    overflow: hidden;
}
.absolute-center {
	position: absolute;
	top: 50%;
	left: 0;
	width: 100%;
  margin-top: 40px;
	transform: translateY(-50%);
	z-index: 20;
}
h1{
	font-size: 48px;
	line-height: 1.2;
	font-weight: 700;
	color: #212112;
	text-align: center;
}
p{
	text-align: center;
	margin: 0;
	padding-top: 10px;
	opacity: 1;
	transform: translate(0);
    transition: all 300ms linear;
    transition-delay: 1700ms;
}
body.hero-anime p{
	opacity: 0;
	transform: translateY(40px);
    transition-delay: 1700ms;
}
h1 span{
	display: inline-block;
    transition: all 300ms linear;
	opacity: 1;
	transform: translate(0);
}
body.hero-anime h1 span:nth-child(1){
	opacity: 0;
	transform: translateY(-20px);
}
body.hero-anime h1 span:nth-child(2){
	opacity: 0;
	transform: translateY(-30px);
}
body.hero-anime h1 span:nth-child(3){
	opacity: 0;
	transform: translateY(-50px);
}
body.hero-anime h1 span:nth-child(4){
	opacity: 0;
	transform: translateY(-10px);
}
body.hero-anime h1 span:nth-child(5){
	opacity: 0;
	transform: translateY(-50px);
}
body.hero-anime h1 span:nth-child(6){
	opacity: 0;
	transform: translateY(-20px);
}
body.hero-anime h1 span:nth-child(7){
	opacity: 0;
	transform: translateY(-40px);
}
body.hero-anime h1 span:nth-child(8){
	opacity: 0;
	transform: translateY(-10px);
}
body.hero-anime h1 span:nth-child(9){
	opacity: 0;
	transform: translateY(-30px);
}
body.hero-anime h1 span:nth-child(10){
	opacity: 0;
	transform: translateY(-20px);
}
h1 span:nth-child(1){
    transition-delay: 1000ms;
}
h1 span:nth-child(2){
    transition-delay: 700ms;
}
h1 span:nth-child(3){
    transition-delay: 900ms;
}
h1 span:nth-child(4){
    transition-delay: 800ms;
}
h1 span:nth-child(5){
    transition-delay: 1000ms;
}
h1 span:nth-child(6){
    transition-delay: 700ms;
}
h1 span:nth-child(7){
    transition-delay: 900ms;
}
h1 span:nth-child(8){
    transition-delay: 800ms;
}
h1 span:nth-child(9){
    transition-delay: 600ms;
}
h1 span:nth-child(10){
    transition-delay: 700ms;
}
body.hero-anime h1 span:nth-child(11){
	opacity: 0;
	transform: translateY(30px);
}
body.hero-anime h1 span:nth-child(12){
	opacity: 0;
	transform: translateY(50px);
}
body.hero-anime h1 span:nth-child(13){
	opacity: 0;
	transform: translateY(20px);
}
body.hero-anime h1 span:nth-child(14){
	opacity: 0;
	transform: translateY(30px);
}
body.hero-anime h1 span:nth-child(15){
	opacity: 0;
	transform: translateY(50px);
}
h1 span:nth-child(11){
    transition-delay: 1300ms;
}
h1 span:nth-child(12){
    transition-delay: 1500ms;
}
h1 span:nth-child(13){
    transition-delay: 1400ms;
}
h1 span:nth-child(14){
    transition-delay: 1200ms;
}
h1 span:nth-child(15){
    transition-delay: 1450ms;
}
#switch,
#circle {
	cursor: pointer;
	-webkit-transition: all 300ms linear;
	transition: all 300ms linear; 
} 
#switch {
	width: 60px;
	height: 8px;
	border: 2px solid #8167a9;
	border-radius: 27px;
	background: #000;
	position: relative;
	display: block;
	margin: 0 auto;
	text-align: center;
	opacity: 1;
	transform: translate(0);
    transition: all 300ms linear;
    transition-delay: 1900ms;
}
body.hero-anime #switch{
	opacity: 0;
	transform: translateY(40px);
    transition-delay: 1900ms;
}
#circle {
	position: absolute;
	top: -11px;
	left: -13px;
	width: 26px;
	height: 26px;
	border-radius: 50%;
	background: #000;
}
.switched {
	border-color: #000 !important;
	background: #8167a9 !important;
}
.switched #circle {
	left: 43px;
	box-shadow: 0 4px 4px rgba(26,53,71,0.25), 0 0 0 1px rgba(26,53,71,0.07);
	background: #fff;
}
.nav-item .dropdown-menu {
    transform: translate3d(0, 10px, 0);
    visibility: hidden;
    opacity: 0;
	max-height: 0;
    display: block;
	padding: 0;
	margin: 0;
    transition: all 200ms linear;
}
.nav-item.show .dropdown-menu {
    opacity: 1;
    visibility: visible;
	max-height: 999px;
    transform: translate3d(0, 0px, 0);
}
.dropdown-menu {
	padding: 10px!important;
	margin: 0;
	font-size: 13px;
	letter-spacing: 1px;
	color: #212121;
	background-color: #fcfaff;
	border: none;
	border-radius: 3px;
	box-shadow: 0 5px 10px 0 rgba(138, 155, 165, 0.15);
    transition: all 200ms linear;
}
.dropdown-toggle::after {
	display: none;
}

.dropdown-item {
	padding: 3px 15px;
	color: #212121;
	border-radius: 2px;
    transition: all 200ms linear;
}
.dropdown-item:hover, 
.dropdown-item:focus {
	color: #fff;
	background-color: rgba(129,103,169,.6);
}

body.dark{
	color: #fff;
	background-color: #1f2029;
}
body.dark .navbar-brand img{
  filter: brightness(100%);
}
body.dark h1{
	color: #fff;
}
body.dark h1 span{
    transition-delay: 0ms !important;
}
body.dark p{
	color: #fff;
    transition-delay: 0ms !important;
}
body.dark .bg-light {
	background-color: #14151a !important;
}
body.dark .start-header {
	box-shadow: 0 10px 30px 0 rgba(0, 0, 0, 0.15);
}
body.dark .start-header.scroll-on {
	box-shadow: 0 5px 10px 0 rgba(0, 0, 0, 0.15);
}
body.dark .nav-link{
	color: #fff !important;
}
body.dark .nav-item.active .nav-link{
	color: #999 !important;
}
body.dark .dropdown-menu {
	color: #fff;
	background-color: #1f2029;
	box-shadow: 0 5px 10px 0 rgba(0, 0, 0, 0.25);
}
body.dark .dropdown-item {
	color: #fff;
}
body.dark .navbar-light .navbar-toggler-icon {
	border-bottom: 1px solid #fff;
}
body.dark .navbar-light .navbar-toggler-icon:after, 
body.dark .navbar-light .navbar-toggler-icon:before{
	background-color: #fff;
}
body.dark .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon {
	border-color: transparent;
}



/* #Media
================================================== */

@media (max-width: 767px) { 
	h1{
		font-size: 38px;
	}
	.nav-item:after{
		display: none;
	}
	.nav-item::before {
		position: absolute;
		display: block;
		top: 15px;
		left: 0;
		width: 11px;
		height: 1px;
		content: "";
		border: none;
		background-color: #000;
		vertical-align: 0;
	}
	.dropdown-toggle::after {
		position: absolute;
		display: block;
		top: 10px;
		left: -23px;
		width: 1px;
		height: 11px;
		content: "";
		border: none;
		background-color: #000;
		vertical-align: 0;
		transition: all 200ms linear;
	}
	.dropdown-toggle[aria-expanded="true"]::after{
		transform: rotate(90deg);
		opacity: 0;
	}
	.dropdown-menu {
		padding: 0 !important;
		background-color: transparent;
		box-shadow: none;
		transition: all 200ms linear;
	}
	.dropdown-toggle[aria-expanded="true"] + .dropdown-menu {
		margin-top: 10px !important;
		margin-bottom: 20px !important;
	}
	body.dark .nav-item::before {
		background-color: #fff;
	}
	body.dark .dropdown-toggle::after {
		background-color: #fff;
	}
	body.dark .dropdown-menu {
		background-color: transparent;
		box-shadow: none;
	}
}

/* #Link to page
================================================== */

.logo {
	position: absolute;
	bottom: 30px;
	right: 30px;
	display: block;
	z-index: 100;
	transition: all 250ms linear;
}
.logo img {
	height: 26px;
	width: auto;
	display: block;
  filter: brightness(10%);
	transition: all 250ms linear;
}
body.dark .logo img {
  filter: brightness(100%);
}
</style>

</head>
<body>
<div class="navigation-wrap bg-light start-header start-style">
	<div class="container">
		<div class="row">
			<div class="col-12">
				<nav class="navbar navbar-expand-md navbar-light">
					<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
						<span class="navbar-toggler-icon"></span>
					</button>
					<div class="collapse navbar-collapse" id="navbarSupportedContent">
						<ul class="navbar-nav ml-auto py-4 py-md-0">
							<li class="nav-item pl-4 pl-md-0 ml-0 ml-md-4 active">
								<a class="nav-link dropdown-toggle" data-toggle="dropdown" href="#" role="button" aria-haspopup="true" aria-expanded="false">Home</a>
								<div class="dropdown-menu">
									<a class="dropdown-item" href="#">Action</a>
									<a class="dropdown-item" href="#">Another action</a>
									<a class="dropdown-item" href="#">Something else here</a>
									<a class="dropdown-item" href="#">Another action</a>
								</div>
							</li>
							<li class="nav-item pl-4 pl-md-0 ml-0 ml-md-4">
								<a class="nav-link" href="#">Portfolio</a>
							</li>
							<li class="nav-item pl-4 pl-md-0 ml-0 ml-md-4">
								<a class="nav-link" href="#">Agency</a>
							</li>
							<li class="nav-item pl-4 pl-md-0 ml-0 ml-md-4">
								<a class="nav-link dropdown-toggle" data-toggle="dropdown" href="#" role="button" aria-haspopup="true" aria-expanded="false">Services</a>
								<div class="dropdown-menu">
									<a class="dropdown-item" href="#">Action</a>
									<a class="dropdown-item" href="#">Another action</a>
									<a class="dropdown-item" href="#">Something else here</a>
									<a class="dropdown-item" href="#">Another action</a>
								</div>
							</li>
							<li class="nav-item pl-4 pl-md-0 ml-0 ml-md-4">
								<a class="nav-link" href="#">Journal</a>
							</li>
							<li class="nav-item pl-4 pl-md-0 ml-0 ml-md-4">
								<a class="nav-link" href="#">Contact</a>
							</li>
						</ul>
					</div>
					
				</nav>		
			</div>
		</div>
	</div>
</div>
<div class="section full-height">
	<div class="absolute-center">
		<div class="section">
			<div class="container">
				<div class="row">
					<div class="col-12">
			<h1><span>B</span><span>o</span><span>o</span><span>t</span><span>s</span><span>t</span><span>r</span><span>a</span><span>p</span> <span>4</span><br>
			<span>m</span><span>e</span><span>n</span><span>u</span></h1>
			<p>scroll for nav animation</p>	
					</div>	
				</div>		
			</div>		
		</div>
		<div class="section mt-5">
			<div class="container">
				<div class="row">
					<div class="col-12">
						<div id="switch">
							<div id="circle"></div>
						</div>
					</div>	
				</div>		
			</div>			
		</div>
	</div>
</div>
<div class="my-5 py-5">
</div><div id="bcl"><a style="font-size:8pt;text-decoration:none;" href="http://www.devanswer.com">Free Frontend</a></div>
<script>
(function ($) {"use strict";

  $(function () {
    var header = $(".start-style");
    $(window).scroll(function () {
      var scroll = $(window).scrollTop();

      if (scroll >= 10) {
        header.removeClass('start-style').addClass("scroll-on");
      } else {
        header.removeClass("scroll-on").addClass('start-style');
      }
    });
  });

  //Animation

  $(document).ready(function () {
    $('body.hero-anime').removeClass('hero-anime');
  });

  //Menu On Hover

  $('body').on('mouseenter mouseleave', '.nav-item', function (e) {
    if ($(window).width() > 750) {
      var _d = $(e.target).closest('.nav-item');_d.addClass('show');
      setTimeout(function () {
        _d[_d.is(':hover') ? 'addClass' : 'removeClass']('show');
      }, 1);
    }
  });

  //Switch light/dark

  $("#switch").on('click', function () {
    if ($("body").hasClass("dark")) {
      $("body").removeClass("dark");
      $("#switch").removeClass("switched");
    } else
    {
      $("body").addClass("dark");
      $("#switch").addClass("switched");
    }
  });

})(jQuery);
</script>

</body>
</html>
Preview