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9_6_scrolled_parallax_images.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/4.1.3/css/bootstrap.min.css"
integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
<title>11_3_Scrolling image horizontally</title>
<style>
body {
overflow-x: hidden;
}
</style>
</head>
<body>
<div style="height:100vh;background:deepskyblue;width:100vw;"></div>
<div id="div1" style="height:100vh;width:100vw;position:relative">
<img id="img1" src="assets/img4000x1000_2.jpg" data-speed=0.4 style="position:absolute;height:100vh">
<img id="img2" src="assets/glass.png" data-speed=0.2 style="position:absolute;width:100vw;">
</div>
<div style="height:100vh;background:grey"></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/1.14.3/umd/popper.min.js"
integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous">
</script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"
integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy" crossorigin="anonymous">
</script>
<script>
$(document).ready(function () {
var imgw = $("#div1 img").width();
var winw = $(window).width();
var winh = $(window).height();
var doch = $(document).height() - winh;
$(window).scroll(function () {
var scrolled = $(window).scrollTop();
$("#img1").css('transform', "translate(" + (-scrolled / doch * $("#img1").width() *
$("#img1").data("speed")) + "px)");
$("#img2").css('transform', "translate(" + (scrolled / doch * $("#img2").width() *
$("#img2").data("speed")) + "px)");
});
});
</script>
</body>
</html>