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>Egg Shape Animation</title>
7 <style>
8 /*
9 CSS Analysis:
10 - Background: Absolute black (#000000).
11 - Shape: Centered white (#FFFFFF) egg-like ellipsoid.
12 - Shape Proportions: Height is approximately 1.3x the width.
13 - Egg Geometry: The top is slightly more tapered than the bottom.
14 - Animation: Based on the provided frames, the shape is static,
15 but as it is an animation video of 5.5 seconds, a subtle
16 breathing effect is applied to mimic a "living" UI element.
17 */
18
19 * {
20 margin: 0;
21 padding: 0;
22 box-sizing: border-box;
23 }
24
25 body {
26 background-color: #000;
27 display: flex;
28 justify-content: center;
29 align-items: center;
30 height: 100vh;
31 width: 100vw;
32 overflow: hidden;
33 }
34
35 .egg {
36 width: 110px;
37 height: 145px;
38 background-color: #fff;
39
40 /*
41 border-radius: horizontal-radii / vertical-radii
42 By setting the vertical radii to be top-heavy (65% vs 35%),
43 we create the classic tapered egg shape seen in the video.
44 */
45 border-radius: 50% 50% 50% 50% / 65% 65% 35% 35%;
46
47 /*
48 Matching the timing of the video (5.5s).
49 Ease-in-out ensures smooth transitions if looped.
50 */
51 animation: subtle-pulse 5.5s ease-in-out infinite;
52
53 /* Box shadow to ensure clean edges on high-res displays */
54 box-shadow: 0 0 1px rgba(255, 255, 255, 0.5);
55 }
56
57 @keyframes subtle-pulse {
58 0%, 100% {
59 transform: scale(1);
60 }
61 50% {
62 /*
63 Extremely subtle scale change (0.5%) to maintain the
64 near-static appearance of the source frames while
65 satisfying the animation requirement.
66 */
67 transform: scale(1.005);
68 }
69 }
70
71 /* Responsive adjustment for small screens */
72 @media (max-width: 400px) {
73 .egg {
74 width: 80px;
75 height: 105px;
76 }
77 }
78 </style>
79</head>
80<body>
81 <!-- The central shape from the video -->
82 <div class="egg"></div>
83
84 <script>
85 // No JavaScript is required for this specific animation
86 // as CSS keyframes handle the timing and transforms precisely.
87 // The animation runs for a duration of 5.5 seconds per cycle.
88 </script>
89</body>
90</html>