Page Header animation

Developer
Size
2,828 Kb
Views
48,576

How do I make an page header animation?

I had to create a very fast and optimized page that had a sophisticated header on-scroll animation ( like 3D parallax ). I could add TweenLite+CSSPlugin ( 21.09KB ), but decided to add nothing more. So this is kind of the most simple, Vanilla JS, yet very flexible and fast header scroll-in effect;. What is a page header animation? How do you make a page header animation? This script and codes were developed by Chrysto on 16 July 2022, Saturday.

Page Header animation Previews

Page Header animation - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Page Header animation</title> <script src="http://s.codepen.io/assets/libs/modernizr.js" type="text/javascript"></script> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/normalize/5.0.0/normalize.min.css"> <link rel="stylesheet" href="css/style.css">
</head>
<body> <header> <div id="box1"></div> <div id="box2"></div> <div id="box3"></div>
</header> <script src='http://cdnjs.cloudflare.com/ajax/libs/gsap/latest/TweenLite.min.js'></script>
<script src='http://cdnjs.cloudflare.com/ajax/libs/gsap/latest/plugins/CSSPlugin.min.js'></script> <script src="js/index.js"></script>
</body>
</html>

Page Header animation - Script Codes CSS Codes

body {	min-height:2000px;
}
header {	position:absolute;	top:0;	left:0;	width:100%;	height:500px;	background-color:#e7e7e7; overflow: hidden;
}
div[id^=box]{ position: absolute;
}
#box1 {	left:10%;	bottom:20%;	width:300px;	height:300px;	background-color:red;
}
#box2 {	top:10%;	left:40%;	width:200px;	height:130px;	background-color:#000;
}
#box3 {	top:30%;	right:20%;	width:12%;	height:17%;	background-color:green;
}

Page Header animation - Script Codes JS Codes

document.addEventListener("DOMContentLoaded", function(){ //needed to get scrollTop position on IE9- var documentElement = document.documentElement; //Heder height var targetPosY = 500; /* A couple of notes here 1) For such a thing, normally I would just use a TimelineMax. It is amazingly flexible and is tend for just this kind of animations. The idea of this pen is to make things fast and simple as possible; 2) Actually, I can pass string to TweenLite.to("element ID", time, {...}); but I prefer to pass DOM Element 3) If you add your own TweenLite's and style it, actually can get pritty nice results */ var tweens = [ TweenLite.to( document.querySelector("#box1"), 1, {css:{force3D:true, scale:1.2, y:100}, paused:true}), TweenLite.to( document.querySelector("#box2"), 1, {css:{force3D:true, scale:1.6, y:200, x:-100, alpha: 0.5}, paused:true}), TweenLite.to( document.querySelector("#box3"), 1, {css:{force3D:true, scale:2.6, y:150, x:50, rotation:45}, paused:true}) ]; window.onscroll = function (event) { ( !! window.requestAnimationFrame) ? requestAnimationFrame(onScroll) : onScroll(); } function onScroll(){ //have to restrict it into range, because on OSX it can get negative values //http://bassta.bg/2013/05/restrict-a-number-to-a-range/ var top = Math.max(Math.min(window.pageYOffset || documentElement.scrollTop, targetPosY), 0); if(top <= targetPosY){ var progress = (top / targetPosY); Array.prototype.forEach.call(tweens, function(tween){ tween.progress(progress); }); } }
});//end on DOMContentLoaded
Page Header animation - Script Codes
Page Header animation - Script Codes
Home Page Home
Developer Chrysto
Username bassta
Uploaded July 16, 2022
Rating 3.5
Size 2,828 Kb
Views 48,576
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Chrysto (bassta) Script Codes
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