Tiempo muerto · Round 4
This page is injured.
It’s out for the season. Stretch, drink some water and head back home for the next set.
Back to trainingHTML + CSS404
Gym 404
A sports stopwatch with the hand sweeping the dial, a lime green progress ring and a scoreboard‑style 404.
Settings
1x
Code
<!doctype html>
<html lang="es">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="robots" content="noindex" />
<title>404 · Page not found</title>
<style>
body { margin: 0; background: #000; }
.n4-gym {
--accent: #c8ff2e;
--k: 1;
position: fixed;
inset: 0;
z-index: 0;
overflow: hidden;
container-type: size;
display: grid;
place-items: center;
background: #000;
color: #f5f5f7;
font-family: -apple-system,BlinkMacSystemFont,"SF Pro Display","Inter","Segoe UI",system-ui,sans-serif;
-webkit-font-smoothing: antialiased;
text-align: center;
line-height: 1.4;
}
.n4-gym *,.n4-gym *::before,.n4-gym *::after {
box-sizing: border-box;
}
.n4-gym .n4-copy {
position: relative;
z-index: 5;
display: flex;
flex-direction: column;
align-items: center;
gap: 1.6cqmin;
width: 100%;
max-width: 680px;
padding: 0 6cqw;
}
.n4-gym .n4-title {
margin: 0;
font-size: clamp(17px,4.2cqmin,36px);
font-weight: 600;
letter-spacing: -.02em;
line-height: 1.15;
text-wrap: balance;
}
.n4-gym .n4-sub {
margin: 0;
max-width: 34em;
font-size: clamp(13px,2.4cqmin,18px);
color: #a1a1a6;
text-wrap: balance;
}
.n4-gym .n4-tag {
font: 600 clamp(10px,1.9cqmin,13px)/1 ui-monospace,"SF Mono",Menlo,Consolas,monospace;
letter-spacing: .16em;
text-transform: uppercase;
color: var(--accent);
}
.n4-gym .n4-cta {
margin-top: 1.8cqmin;
display: inline-flex;
align-items: center;
gap: .5em;
padding: .85em 1.5em;
border-radius: 999px;
background: #f5f5f7;
color: #000;
font-size: clamp(13px,2.2cqmin,16px);
font-weight: 600;
text-decoration: none;
transition: transform .3s cubic-bezier(.25,.1,.25,1),box-shadow .3s cubic-bezier(.25,.1,.25,1);
}
.n4-gym .n4-cta:hover {
transform: translateY(-2px);
box-shadow: 0 12px 32px -10px var(--accent);
}
.n4-gym .n4-cta:focus-visible {
outline: 2px solid var(--accent);
outline-offset: 3px;
}
.n4-gym .n4-stars,.n4-gym .n4-stars2 {
position: absolute;
inset: -4%;
pointer-events: none;
}
.n4-gym .n4-stars {
background-image: radial-gradient(1px 1px at 8% 12%,#fff 60%,transparent),radial-gradient(1px 1px at 22% 68%,#fff 60%,transparent),radial-gradient(1.5px 1.5px at 35% 24%,#fff 60%,transparent),radial-gradient(1px 1px at 48% 82%,#fff 60%,transparent),radial-gradient(1px 1px at 57% 9%,#fff 60%,transparent),radial-gradient(1.5px 1.5px at 66% 44%,#fff 60%,transparent),radial-gradient(1px 1px at 74% 72%,#fff 60%,transparent),radial-gradient(1px 1px at 86% 18%,#fff 60%,transparent),radial-gradient(1.5px 1.5px at 93% 58%,#fff 60%,transparent),radial-gradient(1px 1px at 14% 42%,#fff 60%,transparent),radial-gradient(1px 1px at 40% 55%,#fff 60%,transparent),radial-gradient(1px 1px at 81% 90%,#fff 60%,transparent),radial-gradient(1px 1px at 4% 88%,#fff 60%,transparent),radial-gradient(1px 1px at 62% 30%,#fff 60%,transparent);
opacity: .75;
animation: n4-gym-tw calc(5s / var(--k)) ease-in-out infinite alternate;
}
.n4-gym .n4-stars2 {
background-image: radial-gradient(2px 2px at 18% 30%,rgba(255,255,255,.9) 50%,transparent),radial-gradient(1.5px 1.5px at 72% 20%,rgba(255,255,255,.8) 50%,transparent),radial-gradient(2px 2px at 30% 85%,rgba(255,255,255,.7) 50%,transparent),radial-gradient(1.5px 1.5px at 88% 70%,rgba(255,255,255,.8) 50%,transparent),radial-gradient(2px 2px at 52% 60%,rgba(255,255,255,.6) 50%,transparent),radial-gradient(1.5px 1.5px at 6% 55%,rgba(255,255,255,.8) 50%,transparent);
opacity: .55;
animation: n4-gym-tw calc(7s / var(--k)) ease-in-out infinite alternate-reverse;
}
.n4-gym [data-depth] {
transition: transform .9s cubic-bezier(.2,.7,.2,1);
}
@keyframes n4-gym-tw {
from {
opacity: .3;
}
}
@keyframes n4-gym-spin {
to {
transform: rotate(1turn);
}
}
@keyframes n4-gym-fade {
from {
opacity: 0;
transform: translateY(10px);
}
}
@media (prefers-reduced-motion:reduce) {
.n4-gym *,.n4-gym *::before,.n4-gym *::after {
animation: none!important;
transition: none!important;
}
}
.n4-gym {
background: radial-gradient(60% 50% at 50% 34%,color-mix(in srgb,var(--accent) 9%,transparent),transparent 70%),radial-gradient(90% 70% at 50% 36%,#15170f,#060706 72%);
}
.n4-gym .n4-watch {
flex: none;
width: min(52cqmin,340px);
height: auto;
margin-bottom: 1.6cqmin;
overflow: visible;
filter: drop-shadow(0 0 4cqmin color-mix(in srgb,var(--accent) 16%,transparent)) drop-shadow(0 1.6cqmin 2cqmin rgba(0,0,0,.6));
animation: n4-gym-pop calc(.9s / var(--k)) cubic-bezier(.2,.9,.3,1.2) both;
}
.n4-gym .n4-crown,.n4-gym .n4-side {
fill: url(#n4gy-steel);
}
.n4-gym .n4-crown {
transform-box: fill-box;
animation: n4-gym-press calc(6s / var(--k)) linear infinite;
}
.n4-gym .n4-track {
fill: none;
stroke: rgba(255,255,255,.07);
stroke-width: 4;
}
.n4-gym .n4-arc {
fill: none;
stroke: var(--accent);
stroke-width: 4;
stroke-linecap: round;
filter: drop-shadow(0 0 3px var(--accent));
animation: n4-gym-arc calc(6s / var(--k)) linear infinite;
}
.n4-gym .n4-tick {
stroke: rgba(255,255,255,.2);
stroke-width: 1.1;
stroke-linecap: round;
}
.n4-gym .n4-major {
stroke: rgba(255,255,255,.75);
stroke-width: 2.2;
}
.n4-gym .n4-hand {
transform-box: view-box;
transform-origin: 110px 130px;
animation: n4-gym-spin calc(6s / var(--k)) linear infinite;
}
.n4-gym .n4-hand line {
stroke: var(--accent);
stroke-width: 2;
stroke-linecap: round;
opacity: .9;
}
.n4-gym .n4-hand circle {
fill: var(--accent);
}
.n4-gym .n4-big {
font: italic 900 54px -apple-system,BlinkMacSystemFont,"SF Pro Display","Segoe UI",system-ui,sans-serif;
letter-spacing: -2.5px;
fill: #f5f5f7;
stroke: #0a0b09;
stroke-width: 5px;
paint-order: stroke;
stroke-linejoin: round;
}
.n4-gym .n4-tag {
font-style: italic;
}
.n4-gym .n4-title {
font-size: clamp(24px,6cqmin,52px);
font-weight: 900;
font-style: italic;
letter-spacing: -.035em;
line-height: 1.05;
}
.n4-gym .n4-sub {
color: #9a9a9f;
}
.n4-gym .n4-cta {
border-radius: .5em;
background: var(--accent);
color: #0b0b0c;
font-style: italic;
font-weight: 800;
letter-spacing: .01em;
}
.n4-gym .n4-cta::after {
content: "→";
}
.n4-gym .n4-copy>:not(.n4-watch) {
animation: n4-gym-fade calc(.8s / var(--k)) calc(.3s / var(--k)) cubic-bezier(.2,.7,.2,1) both;
}
@keyframes n4-gym-pop {
from {
opacity: 0;
transform: scale(.85) rotate(-6deg);
}
}
@keyframes n4-gym-press {
0%,5%,100% {
transform: none;
}
2% {
transform: translateY(3px);
}
}
@keyframes n4-gym-arc {
from {
stroke-dasharray: 0 100;
}
to {
stroke-dasharray: 100 100;
}
}
</style>
</head>
<body>
<main class="n4-gym">
<div class="n4-copy">
<svg class="n4-watch" viewBox="0 0 220 232" aria-hidden="true">
<defs>
<linearGradient id="n4gy-steel" x1="0" y1="0" x2="1" y2="0"><stop offset="0" stop-color="#5a5a5e"/><stop offset=".45" stop-color="#e5e5ea"/><stop offset="1" stop-color="#48484a"/></linearGradient>
<radialGradient id="n4gy-case" cx=".4" cy=".3" r=".8"><stop offset="0" stop-color="#3a3a3e"/><stop offset=".7" stop-color="#18181a"/><stop offset="1" stop-color="#0b0b0c"/></radialGradient>
</defs>
<rect class="n4-side" x="103" y="21" width="14" height="12" rx="2.5" transform="rotate(45 110 130)"/>
<g class="n4-crown"><rect x="101" y="18" width="18" height="16" rx="2"/><rect x="92" y="6" width="36" height="13" rx="4.5"/></g>
<circle cx="110" cy="130" r="98" fill="url(#n4gy-case)"/>
<circle cx="110" cy="130" r="86" fill="#0a0b09"/>
<circle class="n4-track" cx="110" cy="130" r="92"/>
<circle class="n4-arc" cx="110" cy="130" r="92" pathLength="100" transform="rotate(-90 110 130)"/>
<line class="n4-tick n4-major" x1="110.00" y1="50.00" x2="110.00" y2="60.00"/><line class="n4-tick" x1="118.36" y1="50.44" x2="117.84" y2="55.41"/><line class="n4-tick" x1="126.63" y1="51.75" x2="125.59" y2="56.64"/><line class="n4-tick" x1="134.72" y1="53.92" x2="133.18" y2="58.67"/><line class="n4-tick" x1="142.54" y1="56.92" x2="140.51" y2="61.48"/><line class="n4-tick n4-major" x1="150.00" y1="60.72" x2="145.00" y2="69.38"/><line class="n4-tick" x1="157.02" y1="65.28" x2="154.08" y2="69.32"/><line class="n4-tick" x1="163.53" y1="70.55" x2="160.18" y2="74.26"/><line class="n4-tick" x1="169.45" y1="76.47" x2="165.74" y2="79.82"/><line class="n4-tick" x1="174.72" y1="82.98" x2="170.68" y2="85.92"/><line class="n4-tick n4-major" x1="179.28" y1="90.00" x2="170.62" y2="95.00"/><line class="n4-tick" x1="183.08" y1="97.46" x2="178.52" y2="99.49"/><line class="n4-tick" x1="186.08" y1="105.28" x2="181.33" y2="106.82"/><line class="n4-tick" x1="188.25" y1="113.37" x2="183.36" y2="114.41"/><line class="n4-tick" x1="189.56" y1="121.64" x2="184.59" y2="122.16"/><line class="n4-tick n4-major" x1="190.00" y1="130.00" x2="180.00" y2="130.00"/><line class="n4-tick" x1="189.56" y1="138.36" x2="184.59" y2="137.84"/><line class="n4-tick" x1="188.25" y1="146.63" x2="183.36" y2="145.59"/><line class="n4-tick" x1="186.08" y1="154.72" x2="181.33" y2="153.18"/><line class="n4-tick" x1="183.08" y1="162.54" x2="178.52" y2="160.51"/><line class="n4-tick n4-major" x1="179.28" y1="170.00" x2="170.62" y2="165.00"/><line class="n4-tick" x1="174.72" y1="177.02" x2="170.68" y2="174.08"/><line class="n4-tick" x1="169.45" y1="183.53" x2="165.74" y2="180.18"/><line class="n4-tick" x1="163.53" y1="189.45" x2="160.18" y2="185.74"/><line class="n4-tick" x1="157.02" y1="194.72" x2="154.08" y2="190.68"/><line class="n4-tick n4-major" x1="150.00" y1="199.28" x2="145.00" y2="190.62"/><line class="n4-tick" x1="142.54" y1="203.08" x2="140.51" y2="198.52"/><line class="n4-tick" x1="134.72" y1="206.08" x2="133.18" y2="201.33"/><line class="n4-tick" x1="126.63" y1="208.25" x2="125.59" y2="203.36"/><line class="n4-tick" x1="118.36" y1="209.56" x2="117.84" y2="204.59"/><line class="n4-tick n4-major" x1="110.00" y1="210.00" x2="110.00" y2="200.00"/><line class="n4-tick" x1="101.64" y1="209.56" x2="102.16" y2="204.59"/><line class="n4-tick" x1="93.37" y1="208.25" x2="94.41" y2="203.36"/><line class="n4-tick" x1="85.28" y1="206.08" x2="86.82" y2="201.33"/><line class="n4-tick" x1="77.46" y1="203.08" x2="79.49" y2="198.52"/><line class="n4-tick n4-major" x1="70.00" y1="199.28" x2="75.00" y2="190.62"/><line class="n4-tick" x1="62.98" y1="194.72" x2="65.92" y2="190.68"/><line class="n4-tick" x1="56.47" y1="189.45" x2="59.82" y2="185.74"/><line class="n4-tick" x1="50.55" y1="183.53" x2="54.26" y2="180.18"/><line class="n4-tick" x1="45.28" y1="177.02" x2="49.32" y2="174.08"/><line class="n4-tick n4-major" x1="40.72" y1="170.00" x2="49.38" y2="165.00"/><line class="n4-tick" x1="36.92" y1="162.54" x2="41.48" y2="160.51"/><line class="n4-tick" x1="33.92" y1="154.72" x2="38.67" y2="153.18"/><line class="n4-tick" x1="31.75" y1="146.63" x2="36.64" y2="145.59"/><line class="n4-tick" x1="30.44" y1="138.36" x2="35.41" y2="137.84"/><line class="n4-tick n4-major" x1="30.00" y1="130.00" x2="40.00" y2="130.00"/><line class="n4-tick" x1="30.44" y1="121.64" x2="35.41" y2="122.16"/><line class="n4-tick" x1="31.75" y1="113.37" x2="36.64" y2="114.41"/><line class="n4-tick" x1="33.92" y1="105.28" x2="38.67" y2="106.82"/><line class="n4-tick" x1="36.92" y1="97.46" x2="41.48" y2="99.49"/><line class="n4-tick n4-major" x1="40.72" y1="90.00" x2="49.38" y2="95.00"/><line class="n4-tick" x1="45.28" y1="82.98" x2="49.32" y2="85.92"/><line class="n4-tick" x1="50.55" y1="76.47" x2="54.26" y2="79.82"/><line class="n4-tick" x1="56.47" y1="70.55" x2="59.82" y2="74.26"/><line class="n4-tick" x1="62.98" y1="65.28" x2="65.92" y2="69.32"/><line class="n4-tick n4-major" x1="70.00" y1="60.72" x2="75.00" y2="69.38"/><line class="n4-tick" x1="77.46" y1="56.92" x2="79.49" y2="61.48"/><line class="n4-tick" x1="85.28" y1="53.92" x2="86.82" y2="58.67"/><line class="n4-tick" x1="93.37" y1="51.75" x2="94.41" y2="56.64"/><line class="n4-tick" x1="101.64" y1="50.44" x2="102.16" y2="55.41"/>
<g class="n4-hand"><line x1="110" y1="148" x2="110" y2="56"/><circle cx="110" cy="130" r="5"/></g>
<text class="n4-big" x="110" y="149" text-anchor="middle">404</text>
</svg>
<span class="n4-tag">Time-out · Round 4</span>
<h1 class="n4-title">This page is injured.</h1>
<p class="n4-sub">It’s out for the season. Stretch, drink some water and head back home for the next set.</p>
<a class="n4-cta" href="/">Back to training</a>
</div>
</main>
</body>
</html>
Prompt for AI
Paste it into ChatGPT, Claude or Cursor and it will adapt the block to your project with these settings, even if you don’t use React.
More in 404
Where to use it
Gyms run a lot of short campaigns: January offers, free trial weeks, a summer bootcamp. The ads and posts stay online long after the landing page is gone, so those clicks hit a dead end. A gym 404 page with some energy turns that into a laugh and sends people back to training.
Change the button to your class timetable or the free trial form, that is where most of these visitors were heading. The black and lime look suits a boxing club or a CrossFit box. For a yoga or pilates studio, lower the speed and soften the colours.