three.js/test.html at main · NicolasKojima/three.js · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
    .background {
        background-color: black;
        width: 100vw;
        height: 100vh;
    }
    .stars {
        top: 0;
        position: relative;
        width: 1px;
        height: 1px;
        background: #ffffff; /* Star color */
        box-shadow: 0 0 2px #ffffff; /* Add glow effect */
        animation: star-fall 20s linear infinite; /* Adjust the animation speed */
        z-index:9999;
    }

    @keyframes star-fall {
        0% {
            transform: translateY(-100vh); /* Initial position off-screen at the top */
        }
        100% {
            transform: translateY(100vh); /* Final position off-screen at the bottom */
        }
    }

    @media screen and (max-width: 768px) {
      .stars {
        opacity: 0.5;
      }
    }
</style>
</head>
<body>
    <div class="background"></div>
<script>
for (let i = 0; i < 400; i++) {
    const star = document.createElement('div');
    star.className = 'stars';
    star.style.left = `${Math.random() * 100}%`;
    star.style.top = `${Math.random() * 100}%`;
    star.style.animationDelay = `${Math.random() * 20}s`; /* Randomize animation delays */
    document.body.appendChild(star);
}
</script>

</body>
</html>