Learn How to Make a Scroll Animation using CSS and JavaScript, step-by-step from scratch.
As you will notice in this tutorial: one block comes from the right and another one from the left!
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Scroll Animation</title>
<link rel="stylesheet" href="style.css">
<script defer src="app.js"></script>
</head>
<body>
<h1>Scroll to See 👀 the Animation</h1>
<div class="box blue show">
<h2>content</h2>
</div>
<div class="box red">
<h2>content</h2>
</div>
<div class="box yellow">
<h2>content</h2>
</div>
<div class="box green">
<h2>content</h2>
</div>
<div class="box blue">
<h2>content</h2>
</div>
<div class="box red">
<h2>content</h2>
</div>
<div class="box yellow">
<h2>content</h2>
</div>
<div class="box green">
<h2>content</h2>
</div>
<div class="box blue">
<h2>content</h2>
</div>
<div class="box red">
<h2>content</h2>
</div>
<div class="box yellow">
<h2>content</h2>
</div>
<div class="box green">
<h2>content</h2>
</div>
</body>
</html>
CSS
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;700&display=swap');
* {
box-sizing: border-box;
}
/*Color*/
.blue {
--clr: #4285f4;
}
.red {
--clr: #db4437;
}
.yellow {
--clr: #f4b400;
}
.green {
--clr: #0f9d58;
}
body {
background-color: #636e72;
font-family: "Roboto", sans-serif;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
margin: 0;
overflow-x: hidden;
}
h1 {
color: rgb(226, 226, 226);
text-transform: uppercase;
margin: 30px;
text-shadow: 2px 2px 10px #000;
}
.box {
background-color: var(--clr);
color: #fff;
display: flex;
align-items: center;
justify-content: center;
width: 400px;
height: 200px;
margin: 10px;
border-radius: 20px;
box-shadow: 2px 4px 5px rgba(0, 0, 0, 0.3);
transform: translateX(400%);
transition: transform 0.4s ease;
}
.box:nth-of-type(even) {
transform: translateX(-400%);
}
.box.show {
transform: translateX(0);
}
.box h2 {
font-size: 45px;
text-shadow: 2px 2px 3px #000;
}
JavaScript
const boxes = document.querySelectorAll('.box');
window.addEventListener('scroll', checkboxes);
checkboxes();
function checkboxes() {
const triggerBottom = window.innerHeight / 5 * 4;
boxes.forEach((box) => {
const boxTop = box.getBoundingClientRect().top;
if (boxTop < triggerBottom) {
box.classList.add('show');
} else {
box.classList.remove('show');
}
});
}
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