model output
GPT-5.4

Single Element Spinner
A 0.93T 0.32
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>Minimal Spinner Replica</title>
7<style>
8  html, body {
9    margin: 0;
10    width: 100%;
11    height: 100%;
12    background: #ffffff;
13    overflow: hidden;
14  }
15
16  .stage {
17    position: relative;
18    width: 100vw;
19    height: 100vh;
20    background: #fff;
21  }
22
23  /* Positioned to match the frames: small spinner near top-left */
24  .spinner {
25    position: absolute;
26    left: 193px;
27    top: 69px;
28    width: 40px;
29    height: 40px;
30    border-radius: 50%;
31    box-sizing: border-box;
32    border: 3px solid #22d3ee;
33    border-top-color: transparent;
34    animation: spin 0.95s linear infinite;
35  }
36
37  @keyframes spin {
38    from { transform: rotate(0deg); }
39    to   { transform: rotate(360deg); }
40  }
41</style>
42</head>
43<body>
44  <div class="stage">
45    <div class="spinner"></div>
46  </div>
47</body>
48</html>