model output
Claude Sonnet 4.6

Such Spinners, Much Loading
A 0.90T 0.37
1<!DOCTYPE html>
2<html lang="en">
3<head>
4<meta charset="UTF-8">
5<meta name="viewport" content="width=device-width, initial-scale=1.0">
6<title>Dot Animation</title>
7<style>
8  * {
9    margin: 0;
10    padding: 0;
11    box-sizing: border-box;
12  }
13
14  body {
15    background: #ffffff;
16    width: 100vw;
17    height: 100vh;
18    display: flex;
19    align-items: center;
20    justify-content: center;
21  }
22
23  .dot {
24    width: 40px;
25    height: 40px;
26    background-color: #333333;
27    border-radius: 50%;
28    animation: pulse 1.2s ease-in-out infinite;
29  }
30
31  @keyframes pulse {
32    0% { transform: scale(1); }
33    50% { transform: scale(0.85); }
34    100% { transform: scale(1); }
35  }
36</style>
37</head>
38<body>
39  <div class="dot"></div>
40</body>
41</html>