Bootstrap Headers:

Bootstrap Animating Navbar Header

Headers are the most important parts of a website. They are the first thing that the new visitors see and might play a vital role in determining whether the person stays and becomes a member or leaves your site and you lose one possible user. Due to the importance of a website header, web designers put a lot of time and effort in designing this part. The header should be the first section of your web page that you design because it will decide what the rest of your website will look like and how you should create a theme for it. so, if you put a lot of energy in designing a good, professional header, there is a high chance that you don’t need as much thinking for the rest of your site.

In this post, we have an amazing looking Bootstrap navbar animation header. We all know how important and useful navbars are and how much convenience they add to the user experience. Although a simple navbar header is enough, but why not take things one step further and use a Bootstrap dynamic navbar. This way, you can make sure your users are interested in the rest of your website. It is better to be overprepared than underprepared, right? So, scroll down and use this animating navbar code right away with no costs!

#Animating Navbar Code

#Bootstrap Navbar Animation

#Bootstrap Dynamic Navbar


<!-- This script got from www.frontendfreecode.com -->
<nav class="navbar navbar-expand-sm navbar-mainbg">
	<a class="navbar-brand navbar-logo" href="#">Navbar</a>
	<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
	<i class="fas fa-bars text-white"></i>
	</button>
	<div class="collapse navbar-collapse" id="navbarSupportedContent">
		<ul class="navbar-nav ml-auto">
			<div class="hori-selector"><div class="left"></div><div class="right"></div></div>
			<li class="nav-item">
				<a class="nav-link" href="javascript:void(0);"><i class="fas fa-tachometer-alt"></i>Dashboard</a>
			</li>
			<li class="nav-item active">
				<a class="nav-link" href="javascript:void(0);"><i class="far fa-address-book"></i>Address Book</a>
			</li>
			<li class="nav-item">
				<a class="nav-link" href="javascript:void(0);"><i class="far fa-clone"></i>Components</a>
			</li>
			<li class="nav-item">
				<a class="nav-link" href="javascript:void(0);"><i class="far fa-calendar-alt"></i>Calendar</a>
			</li>
			<li class="nav-item">
				<a class="nav-link" href="javascript:void(0);"><i class="far fa-chart-bar"></i>Charts</a>
			</li>
			<li class="nav-item">
				<a class="nav-link" href="javascript:void(0);"><i class="far fa-copy"></i>Documents</a>
			</li>
		</ul>
	</div>
</nav><a style="font-size: 8pt; text-decoration: none" target="_blank" href="http://www.frontendfreecode.com">Free Frontend</a>

@import url('https://fonts.googleapis.com/css?family=Roboto');

body{
	font-family: 'Roboto', sans-serif;
}
* {
	margin: 0;
	padding: 0;
}
i {
	margin-right: 10px;
}
/*----------multi-level-accordian-menu------------*/
.navbar-logo{
	padding: 15px;
	color: #fff;
}
.navbar-mainbg{
	background-color: #5161ce;
	padding: 0px;
}
#navbarSupportedContent{
	overflow: hidden;
	position: relative;
}
#navbarSupportedContent ul{
	padding: 0px;
	margin: 0px;
}
#navbarSupportedContent ul li a i{
	margin-right: 10px;
}
#navbarSupportedContent li {
	list-style-type: none;
	float: left;
}
#navbarSupportedContent ul li a{
	color: rgba(255,255,255,0.5);
    text-decoration: none;
    font-size: 15px;
    display: block;
    padding: 20px 20px;
    transition-duration:0.6s;
	transition-timing-function: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    position: relative;
}
#navbarSupportedContent>ul>li.active>a{
	color: #5161ce;
	background-color: transparent;
	transition: all 0.7s;
}
#navbarSupportedContent a:not(:only-child):after {
	content: "\f105";
	position: absolute;
	right: 20px;
	top: 10px;
	font-size: 14px;
	font-family: "Font Awesome 5 Free";
	display: inline-block;
	padding-right: 3px;
	vertical-align: middle;
	font-weight: 900;
	transition: 0.5s;
}
#navbarSupportedContent .active>a:not(:only-child):after {
	transform: rotate(90deg);
}
.hori-selector{
	display:inline-block;
	position:absolute;
	height: 100%;
	top: 0px;
	left: 0px;
	transition-duration:0.6s;
	transition-timing-function: cubic-bezier(0.68, -0.55, 0.265, 1.55);
	background-color: #fff;
	border-top-left-radius: 15px;
	border-top-right-radius: 15px;
	margin-top: 10px;
}
.hori-selector .right,
.hori-selector .left{
	position: absolute;
	width: 25px;
	height: 25px;
	background-color: #fff;
	bottom: 10px;
}
.hori-selector .right{
	right: -25px;
}
.hori-selector .left{
	left: -25px;
}
.hori-selector .right:before,
.hori-selector .left:before{
	content: '';
    position: absolute;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: #5161ce;
}
.hori-selector .right:before{
	bottom: 0;
    right: -25px;
}
.hori-selector .left:before{
	bottom: 0;
    left: -25px;
}


@media (max-width: 1200px){
	#navbarSupportedContent ul li a{
		padding: 12px 30px;
	}
	.hori-selector{
		margin-top: 0px;
		margin-left: 10px;
		border-radius: 0;
		border-top-left-radius: 25px;
		border-bottom-left-radius: 25px;
	}
	.hori-selector .left,
	.hori-selector .right{
		right: 10px;
	}
	.hori-selector .left{
		top: -25px;
		left: auto;
	}
	.hori-selector .right{
		bottom: -25px;
	}
	.hori-selector .left:before{
		left: -25px;
		top: -25px;
	}
	.hori-selector .right:before{
		bottom: -25px;
		left: -25px;
	}
}

function test() {
  var tabsNewAnim = $('#navbarSupportedContent');
  var selectorNewAnim = $('#navbarSupportedContent').find('li').length;
  var activeItemNewAnim = tabsNewAnim.find('.active');
  var activeWidthNewAnimHeight = activeItemNewAnim.innerHeight();
  var activeWidthNewAnimWidth = activeItemNewAnim.innerWidth();
  var itemPosNewAnimTop = activeItemNewAnim.position();
  var itemPosNewAnimLeft = activeItemNewAnim.position();
  $(".hori-selector").css({
    "top": itemPosNewAnimTop.top + "px",
    "left": itemPosNewAnimLeft.left + "px",
    "height": activeWidthNewAnimHeight + "px",
    "width": activeWidthNewAnimWidth + "px" });

  $("#navbarSupportedContent").on("click", "li", function (e) {
    $('#navbarSupportedContent ul li').removeClass("active");
    $(this).addClass('active');
    var activeWidthNewAnimHeight = $(this).innerHeight();
    var activeWidthNewAnimWidth = $(this).innerWidth();
    var itemPosNewAnimTop = $(this).position();
    var itemPosNewAnimLeft = $(this).position();
    $(".hori-selector").css({
      "top": itemPosNewAnimTop.top + "px",
      "left": itemPosNewAnimLeft.left + "px",
      "height": activeWidthNewAnimHeight + "px",
      "width": activeWidthNewAnimWidth + "px" });

  });
}
$(document).ready(function () {
  setTimeout(function () {test();});
});
$(window).on('resize', function () {
  setTimeout(function () {test();}, 500);
});
$(".navbar-toggler").click(function () {
  setTimeout(function () {test();});
});

<link rel='stylesheet' href='https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css'>
<link rel='stylesheet' href='https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.10.2/css/all.css'>
<script src='https://code.jquery.com/jquery-3.4.1.min.js'></script>
<script src='https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js'></script>

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<!-- This script got from www.frontendfreecode.com -->

<link rel='stylesheet' href='https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css'>
<link rel='stylesheet' href='https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.10.2/css/all.css'>
<script src='https://code.jquery.com/jquery-3.4.1.min.js'></script>
<script src='https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js'></script>
<style>
@import url('https://fonts.googleapis.com/css?family=Roboto');

body{
	font-family: 'Roboto', sans-serif;
}
* {
	margin: 0;
	padding: 0;
}
i {
	margin-right: 10px;
}
/*----------multi-level-accordian-menu------------*/
.navbar-logo{
	padding: 15px;
	color: #fff;
}
.navbar-mainbg{
	background-color: #5161ce;
	padding: 0px;
}
#navbarSupportedContent{
	overflow: hidden;
	position: relative;
}
#navbarSupportedContent ul{
	padding: 0px;
	margin: 0px;
}
#navbarSupportedContent ul li a i{
	margin-right: 10px;
}
#navbarSupportedContent li {
	list-style-type: none;
	float: left;
}
#navbarSupportedContent ul li a{
	color: rgba(255,255,255,0.5);
    text-decoration: none;
    font-size: 15px;
    display: block;
    padding: 20px 20px;
    transition-duration:0.6s;
	transition-timing-function: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    position: relative;
}
#navbarSupportedContent>ul>li.active>a{
	color: #5161ce;
	background-color: transparent;
	transition: all 0.7s;
}
#navbarSupportedContent a:not(:only-child):after {
	content: "\f105";
	position: absolute;
	right: 20px;
	top: 10px;
	font-size: 14px;
	font-family: "Font Awesome 5 Free";
	display: inline-block;
	padding-right: 3px;
	vertical-align: middle;
	font-weight: 900;
	transition: 0.5s;
}
#navbarSupportedContent .active>a:not(:only-child):after {
	transform: rotate(90deg);
}
.hori-selector{
	display:inline-block;
	position:absolute;
	height: 100%;
	top: 0px;
	left: 0px;
	transition-duration:0.6s;
	transition-timing-function: cubic-bezier(0.68, -0.55, 0.265, 1.55);
	background-color: #fff;
	border-top-left-radius: 15px;
	border-top-right-radius: 15px;
	margin-top: 10px;
}
.hori-selector .right,
.hori-selector .left{
	position: absolute;
	width: 25px;
	height: 25px;
	background-color: #fff;
	bottom: 10px;
}
.hori-selector .right{
	right: -25px;
}
.hori-selector .left{
	left: -25px;
}
.hori-selector .right:before,
.hori-selector .left:before{
	content: '';
    position: absolute;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: #5161ce;
}
.hori-selector .right:before{
	bottom: 0;
    right: -25px;
}
.hori-selector .left:before{
	bottom: 0;
    left: -25px;
}


@media (max-width: 1200px){
	#navbarSupportedContent ul li a{
		padding: 12px 30px;
	}
	.hori-selector{
		margin-top: 0px;
		margin-left: 10px;
		border-radius: 0;
		border-top-left-radius: 25px;
		border-bottom-left-radius: 25px;
	}
	.hori-selector .left,
	.hori-selector .right{
		right: 10px;
	}
	.hori-selector .left{
		top: -25px;
		left: auto;
	}
	.hori-selector .right{
		bottom: -25px;
	}
	.hori-selector .left:before{
		left: -25px;
		top: -25px;
	}
	.hori-selector .right:before{
		bottom: -25px;
		left: -25px;
	}
}
</style>

</head>
<body>
<nav class="navbar navbar-expand-sm navbar-mainbg">
	<a class="navbar-brand navbar-logo" href="#">Navbar</a>
	<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
	<i class="fas fa-bars text-white"></i>
	</button>
	<div class="collapse navbar-collapse" id="navbarSupportedContent">
		<ul class="navbar-nav ml-auto">
			<div class="hori-selector"><div class="left"></div><div class="right"></div></div>
			<li class="nav-item">
				<a class="nav-link" href="javascript:void(0);"><i class="fas fa-tachometer-alt"></i>Dashboard</a>
			</li>
			<li class="nav-item active">
				<a class="nav-link" href="javascript:void(0);"><i class="far fa-address-book"></i>Address Book</a>
			</li>
			<li class="nav-item">
				<a class="nav-link" href="javascript:void(0);"><i class="far fa-clone"></i>Components</a>
			</li>
			<li class="nav-item">
				<a class="nav-link" href="javascript:void(0);"><i class="far fa-calendar-alt"></i>Calendar</a>
			</li>
			<li class="nav-item">
				<a class="nav-link" href="javascript:void(0);"><i class="far fa-chart-bar"></i>Charts</a>
			</li>
			<li class="nav-item">
				<a class="nav-link" href="javascript:void(0);"><i class="far fa-copy"></i>Documents</a>
			</li>
		</ul>
	</div>
</nav><div id="bcl"><a style="font-size:8pt;text-decoration:none;" href="http://www.devanswer.com">Free Frontend</a></div>
<script>
function test() {
  var tabsNewAnim = $('#navbarSupportedContent');
  var selectorNewAnim = $('#navbarSupportedContent').find('li').length;
  var activeItemNewAnim = tabsNewAnim.find('.active');
  var activeWidthNewAnimHeight = activeItemNewAnim.innerHeight();
  var activeWidthNewAnimWidth = activeItemNewAnim.innerWidth();
  var itemPosNewAnimTop = activeItemNewAnim.position();
  var itemPosNewAnimLeft = activeItemNewAnim.position();
  $(".hori-selector").css({
    "top": itemPosNewAnimTop.top + "px",
    "left": itemPosNewAnimLeft.left + "px",
    "height": activeWidthNewAnimHeight + "px",
    "width": activeWidthNewAnimWidth + "px" });

  $("#navbarSupportedContent").on("click", "li", function (e) {
    $('#navbarSupportedContent ul li').removeClass("active");
    $(this).addClass('active');
    var activeWidthNewAnimHeight = $(this).innerHeight();
    var activeWidthNewAnimWidth = $(this).innerWidth();
    var itemPosNewAnimTop = $(this).position();
    var itemPosNewAnimLeft = $(this).position();
    $(".hori-selector").css({
      "top": itemPosNewAnimTop.top + "px",
      "left": itemPosNewAnimLeft.left + "px",
      "height": activeWidthNewAnimHeight + "px",
      "width": activeWidthNewAnimWidth + "px" });

  });
}
$(document).ready(function () {
  setTimeout(function () {test();});
});
$(window).on('resize', function () {
  setTimeout(function () {test();}, 500);
});
$(".navbar-toggler").click(function () {
  setTimeout(function () {test();});
});
</script>

</body>
</html>

Preview