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5_3_move_objs_explaining_relative_absolute_position.html
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5_3_move_objs_explaining_relative_absolute_position.html
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<!doctype html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
<title>Progress bar</title>
</head>
<body>
<div style="height:500px;background-color:dodgerblue"></div>
<div class="sticky-top" style="height:25px;background-color:dimgray">
<div style="float:left;height:25px;width:25px;background-color:deeppink"></div>
<div id="statusbar" style="position:relative;float:left;height:25px;width:25px;left:0px;background-color:rgba(255, 255, 0, 0.5)"></div>
<div style="float:left;height:25px;width:25px;background-color:pink"></div>
<div style="float:left;height:25px;width:25px;background-color:lightpink"></div>
</div>
<div style="height:200vh;">
<h1>Space for content: height:200vh</h1>
</div>
<div style="height:100vh;background-color:gray"></div>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
<script>
$(function(){
var doch = $(document).height();
var winw = $(window).width();
var winh = $(window).height();
var max_scroll = doch - winh;
$(window).scroll(function(){
var scrolled = $(window).scrollTop();
var new_left = scrolled / max_scroll * winw;
$("#statusbar").css("left", new_left);
});
});
</script>
</body>
</html>