<!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>Document</title>
<style>
body {
background-color: black;
}
div {
width: 250px;
height: 250px;
margin-bottom: 5px;
background-color: yellow;
border-radius: 10%;
}
.special {
background-color: salmon;
}
.btn {
position: fixed;
top: 20px;
right: 20px;
}
</style>
</head>
<body>
<div></div>
<div></div>
<div></div>
<div class="special"></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<aside class="btn">
<button id="first_btn" , type="button">scroll by</button>
<button id="second_btn" , type="button">scroll to</button>
<button id="third_btn" , type="button">scroll into</button>
</aside>
<script>
const special = document.querySelector('.special');
special.addEventListener('click', event => {
const rect = special.getBoundingClientRect();
console.log(rect);
console.log(`client: ${event.clientX}, ${event.clientY}`);
console.log(`page: ${event.pageX}, ${event.pageY}`);
});
const first = document.querySelector('#first_btn');
first_btn.addEventListener('click', event => {
// window.scrollBy(0, 100);
window.scrollBy({ top: 100, left: 0, behavior: 'smooth' });
});
const second = document.querySelector('#second_btn');
second_btn.addEventListener('click', event => {
window.scrollTo(0, 100);
});
const third = document.querySelector('#third_btn');
third_btn.addEventListener('click', event => {
special.scrollIntoView();
});
</script>
</body>
</html>
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