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index-start.html
executable file
·61 lines (49 loc) · 1.34 KB
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index-start.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Mouse Shadow</title>
</head>
<body>
<div class="hero">
<h1 contenteditable>💩💩💩</h1>
</div>
<style>
html {
color: black;
font-family: sans-serif;
}
body {
margin: 0;
}
.hero {
min-height: 100vh;
display: flex;
justify-content: center;
align-items: center;
color: black;
}
h1 {
text-shadow: 10px 10px 0 rgba(0,0,0,1);
font-size: 100px;
}
</style>
<script>
const hero = document.querySelector('.hero');
const text = hero.querySelector('h1');
const walk = 200; // 200px
function shadow(e) {
const {offsetWidth: width, offsetHeight: height} = hero;
let {offsetX: x, offsetY: y} = e; // 有個問題是當滑入 .text 時 e.offsetX & e.offsetY 會變成 .text 的數值而不是 .hero 的
if (this !== e.target) { // this 是 .hero,ˋ這裡的意思是當滑鼠進入 .text 時
x += e.target.offsetLeft;
y += e.target.offsetTop;
}
const xWalk = Math.round((x / width * walk) - (walk / 2));
const yWalk = Math.round((y / height * walk) - (walk / 2));
text.style.textShadow = `${xWalk}px ${yWalk}px 10px rgba(155,119,93,0.7), ${-xWalk}px ${-yWalk}px 10px rgba(240,226,205,0.7)`
}
hero.addEventListener('mousemove', shadow);
</script>
</body>
</html>