<!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>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="bg"></div>
<div class="circle"></div>
<script>
const bg = document.querySelector('.bg')
const circle = document.querySelector('.circle')
bg.addEventListener('mousemove', function(e){
console.log(e.pageX, e.pageY)
circle.style.left = `${e.pageX}px`
circle.style.top = `${e.pageY}px`
})
</script>
</body>
</html>
body{
margin: 0;
}
.bg{
width: 100%;
height: 100vh;
background-image: url(bg.png);
background-repeat: no-repeat;
background-size: cover;
background-position: center;
}
.circle{
width: 300px; height: 300px;
border-radius: 50%;
background-color: gray;
position: absolute;
transform: translate(-50%, -50%);
border: 3px solid #333;
mix-blend-mode: multiply;
cursor: zoom-in;
filter: blur(10px);
}
.gray{
filter: grayscale(50%);
}