" Animated Logo Resize on Scroll "
Bootstrap 4.1.1 Snippet by divyalahad

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<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,height=device-height,initial-scale=1">
<title>untitled document</title>
<link rel="stylesheet" href="screen.css" media="screen">
<style media="screen">
html, body {
height: 100%;
margin: 0 0.5em;
}
body {
height: 150%; /* this is only for scroll testing */
background-color: #f0f0f0;
}
#header {
position: fixed;
top: 0;
left: 0;
z-index: 9999;
width: 100%;
border-bottom: 0.062em solid #fff;
background-color: #203989;
}
#header img {
display: block;
height: auto;
}
.grow {
padding: 1.8745em 0;
transition: 0.5s ease-in-out;
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