Runs/circle · chain · Sonnet 5/006
circle · chain · Sonnet 5 · step 006 of 64
offline render, Chrome 154, light scheme, 2 s of virtual time
runs in a sandboxed frame with no origin; live pages may fetch CDN fonts the offline render did not
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Pulsing Circle</title>
<style>
:root {
--circle-hue: #8ec5ff;
--circle-core: #4a7dd9;
--circle-shadow: #1f3a75;
--cycle: 2.5s;
}
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
width: 100vw;
height: 100vh;
display: flex;
justify-content: center;
align-items: center;
background: radial-gradient(circle at center, #1a1a2e 0%, #0d0d17 100%);
overflow: hidden;
}
svg {
width: min(400px, 80vmin);
height: min(400px, 80vmin);
overflow: visible;
}
.ambient {
fill: var(--circle-hue);
opacity: 0.12;
filter: blur(30px);
animation: breathe var(--cycle) cubic-bezier(0.4, 0, 0.2, 1) infinite;
transform-origin: 200px 200px;
}
.core {
animation: pulse var(--cycle) cubic-bezier(0.4, 0, 0.2, 1) infinite;
transform-origin: 200px 200px;
filter: url(#glow);
will-change: transform, opacity;
}
.highlight {
fill: url(#highlightGradient);
transform-origin: 200px 200px;
animation: pulse var(--cycle) cubic-bezier(0.4, 0, 0.2, 1) infinite;
pointer-events: none;
}
.ring {
fill: none;
stroke: var(--circle-hue);
stroke-width: 2.5;
transform-origin: 200px 200px;
animation: ripple var(--cycle) cubic-bezier(0.2, 0.6, 0.4, 1) infinite;
will-change: transform, opacity, stroke-width;
}
.ring--delay-1 {
animation-delay: calc(var(--cycle) / 3);
}
.ring--delay-2 {
animation-delay: calc(var(--cycle) / 3 * 2);
}
@keyframes pulse {
0%, 100% {
transform: scale(1);
opacity: 0.9;
}
50% {
transform: scale(1.05);
opacity: 1;
}
}
@keyframes breathe {
0%, 100% {
transform: scale(0.95);
opacity: 0.1;
}
50% {
transform: scale(1.1);
opacity: 0.18;
}
}
@keyframes ripple {
0% {
transform: scale(1);
opacity: 0.6;
stroke-width: 2.5;
}
100% {
transform: scale(1.35);
opacity: 0;
stroke-width: 0.5;
}
}
@media (prefers-reduced-motion: reduce) {
.core, .ring, .ambient, .highlight {
animation: none;
}
.ring {
opacity: 0.35;
}
.ambient {
opacity: 0.12;
}
}
</style>
</head>
<body>
<svg id="ae683f770" viewBox="0 0 400 400" role="img" aria-label="Pulsing blue circle animation">
<defs>
<radialGradient id="circleGradient" cx="35%" cy="35%" r="65%">
<stop offset="0%" stop-color="#8ec5ff"/>
<stop offset="55%" stop-color="#4a7dd9"/>
<stop offset="100%" stop-color="#1f3a75"/>
</radialGradient>
<radialGradient id="highlightGradient" cx="32%" cy="28%" r="22%">
<stop offset="0%" stop-color="#ffffff" stop-opacity="0.55"/>
<stop offset="100%" stop-color="#ffffff" stop-opacity="0"/>
</radialGradient>
<filter id="glow" x="-80%" y="-80%" width="260%" height="260%">
<feGaussianBlur in="SourceGraphic" stdDeviation="10" result="blur"/>
<feColorMatrix in="blur" type="matrix"
values="0 0 0 0 0.55 0 0 0 0 0.77 0 0 0 0 1 0 0 0 0.9 0" result="tintedBlur"/>
<feMerge>
<feMergeNode in="tintedBlur"/>
<feMergeNode in="SourceGraphic"/>
</feMerge>
</filter>
</defs>
<circle class="ambient" cx="200" cy="200" r="160"/>
<circle class="ring" cx="200" cy="200" r="140"/>
<circle class="ring ring--delay-1" cx="200" cy="200" r="140"/>
<circle class="ring ring--delay-2" cx="200" cy="200" r="140"/>
<circle class="core" cx="200" cy="200" r="140" fill="url(#circleGradient)"/>
<circle class="highlight" cx="200" cy="200" r="140"/>
</svg>
</body>
</html>
what changed from step 005
+48 / -8 lines
<title>Pulsing Circle</title> <style>+ :root {+ --circle-hue: #8ec5ff;+ --circle-core: #4a7dd9;+ --circle-shadow: #1f3a75;+ --cycle: 2.5s;+ } * { margin: 0;⋯ line 31 overflow: visible; }+ .ambient {+ fill: var(--circle-hue);+ opacity: 0.12;+ filter: blur(30px);+ animation: breathe var(--cycle) cubic-bezier(0.4, 0, 0.2, 1) infinite;+ transform-origin: 200px 200px;+ } .core {- animation: pulse 2.5s cubic-bezier(0.4, 0, 0.2, 1) infinite;+ animation: pulse var(--cycle) cubic-bezier(0.4, 0, 0.2, 1) infinite; transform-origin: 200px 200px; filter: url(#glow); will-change: transform, opacity; }+ .highlight {+ fill: url(#highlightGradient);+ transform-origin: 200px 200px;+ animation: pulse var(--cycle) cubic-bezier(0.4, 0, 0.2, 1) infinite;+ pointer-events: none;+ } .ring { fill: none;- stroke: #8ec5ff;- stroke-width: 2;+ stroke: var(--circle-hue);+ stroke-width: 2.5; transform-origin: 200px 200px;- animation: ripple 2.5s cubic-bezier(0.2, 0.6, 0.4, 1) infinite;- will-change: transform, opacity;+ animation: ripple var(--cycle) cubic-bezier(0.2, 0.6, 0.4, 1) infinite;+ will-change: transform, opacity, stroke-width; } .ring--delay-1 {- animation-delay: 0.83s;+ animation-delay: calc(var(--cycle) / 3); } .ring--delay-2 {- animation-delay: 1.66s;+ animation-delay: calc(var(--cycle) / 3 * 2); } @keyframes pulse {⋯ line 74 } }+ @keyframes breathe {+ 0%, 100% {+ transform: scale(0.95);+ opacity: 0.1;+ }+ 50% {+ transform: scale(1.1);+ opacity: 0.18;+ }+ } @keyframes ripple { 0% { transform: scale(1); opacity: 0.6;+ stroke-width: 2.5; } 100% { transform: scale(1.35); opacity: 0;+ stroke-width: 0.5; } } @media (prefers-reduced-motion: reduce) {- .core, .ring {+ .core, .ring, .ambient, .highlight { animation: none; }⋯ line 103 opacity: 0.35; }+ .ambient {+ opacity: 0.12;+ } } </style>⋯ line 117 <stop offset="100%" stop-color="#1f3a75"/> </radialGradient>+ <radialGradient id="highlightGradient" cx="32%" cy="28%" r="22%">+ <stop offset="0%" stop-color="#ffffff" stop-opacity="0.55"/>+ <stop offset="100%" stop-color="#ffffff" stop-opacity="0"/>+ </radialGradient> <filter id="glow" x="-80%" y="-80%" width="260%" height="260%"> <feGaussianBlur in="SourceGraphic" stdDeviation="10" result="blur"/>⋯ line 131 </filter> </defs>+ <circle class="ambient" cx="200" cy="200" r="160"/> <circle class="ring" cx="200" cy="200" r="140"/> <circle class="ring ring--delay-1" cx="200" cy="200" r="140"/> <circle class="ring ring--delay-2" cx="200" cy="200" r="140"/> <circle class="core" cx="200" cy="200" r="140" fill="url(#circleGradient)"/>+ <circle class="highlight" cx="200" cy="200" r="140"/> </svg> </body>
What the model said
I couldn't auto-open the file in a browser (blocked, no approval surface available), but the edits are complete — feel free to open `0.html` yourself to preview. Summary of improvements: - Added CSS custom properties (`--circle-hue`, `--cycle`, etc.) so colors/timing are easy to tweak in one place, and evenly spaced ring delays via `calc()`. - Added a soft blurred "ambient" circle behind everything for depth. - Animated the ripple rings' `stroke-width` (thick → thin) as they expand, for a more natural dissipating look. - Added a specular highlight gradient/ellipse on the core for a subtle 3D sheen. - Extended `prefers-reduced-motion` handling to cover the new ambient/highlight layers.