Houston, tenemos un problema.
Esta página ha salido de órbita. Te devolvemos a la base antes de que se acabe el oxígeno.
Volver a la baseHTML + CSS404
404 Houston
El cero es una Luna con cráteres y un satélite en órbita. Las estrellas se mueven con el ratón.
Ajustes
1x
Código
<!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 · Página no encontrada</title>
<style>
body { margin: 0; background: #000; }
.n4-houston {
--accent: #9fc3ff;
--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-houston *,.n4-houston *::before,.n4-houston *::after {
box-sizing: border-box;
}
.n4-houston .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-houston .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-houston .n4-sub {
margin: 0;
max-width: 34em;
font-size: clamp(13px,2.4cqmin,18px);
color: #a1a1a6;
text-wrap: balance;
}
.n4-houston .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-houston .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-houston .n4-cta:hover {
transform: translateY(-2px);
box-shadow: 0 12px 32px -10px var(--accent);
}
.n4-houston .n4-cta:focus-visible {
outline: 2px solid var(--accent);
outline-offset: 3px;
}
.n4-houston .n4-stars,.n4-houston .n4-stars2 {
position: absolute;
inset: -4%;
pointer-events: none;
}
.n4-houston .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-houston-tw calc(5s / var(--k)) ease-in-out infinite alternate;
}
.n4-houston .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-houston-tw calc(7s / var(--k)) ease-in-out infinite alternate-reverse;
}
.n4-houston [data-depth] {
transition: transform .9s cubic-bezier(.2,.7,.2,1);
}
@keyframes n4-houston-tw {
from {
opacity: .3;
}
}
@keyframes n4-houston-spin {
to {
transform: rotate(1turn);
}
}
@keyframes n4-houston-fade {
from {
opacity: 0;
transform: translateY(10px);
}
}
@media (prefers-reduced-motion:reduce) {
.n4-houston *,.n4-houston *::before,.n4-houston *::after {
animation: none!important;
transition: none!important;
}
}
.n4-houston {
background: radial-gradient(80% 60% at 50% 40%,#0a1020,#000 72%);
}
.n4-houston .n4-num {
margin: 0 0 1cqmin;
display: flex;
align-items: center;
font-size: clamp(84px,28cqmin,280px);
font-weight: 700;
letter-spacing: -.05em;
line-height: .9;
}
.n4-houston .n4-num b {
color: #f5f5f7;
text-shadow: 0 0 .2em color-mix(in srgb,var(--accent) 30%,transparent);
}
.n4-houston .n4-o {
position: relative;
isolation: isolate;
display: grid;
place-items: center;
width: .78em;
height: .78em;
margin: 0 .06em;
}
.n4-houston .n4-moon {
position: relative;
z-index: 1;
width: .72em;
height: .72em;
border-radius: 50%;
background: radial-gradient(circle at 30% 34%,rgba(0,0,0,.28) 0 .045em,transparent .05em),radial-gradient(circle at 64% 30%,rgba(0,0,0,.22) 0 .03em,transparent .035em),radial-gradient(circle at 55% 64%,rgba(0,0,0,.25) 0 .07em,transparent .075em),radial-gradient(circle at 26% 70%,rgba(0,0,0,.18) 0 .028em,transparent .033em),radial-gradient(circle at 78% 55%,rgba(0,0,0,.2) 0 .022em,transparent .027em),radial-gradient(ellipse 40% 30% at 40% 45%,rgba(0,0,0,.12),transparent 70%),radial-gradient(circle at 35% 30%,#f2f2f4,#c7c7cc 45%,#8e8e93 75%,#5a5a5f);
box-shadow: inset -.1em -.06em .14em rgba(0,0,0,.65),0 0 .35em rgba(255,255,255,.12);
}
.n4-houston .n4-orbit {
position: absolute;
left: 50%;
top: 50%;
width: 1.5em;
height: 1.5em;
margin: -.75em 0 0 -.75em;
transform: rotate(-16deg) scaleY(.32);
pointer-events: none;
z-index: 0;
animation: n4-houston-z calc(9s / var(--k)) linear infinite;
}
.n4-houston .n4-orbit::before {
content: "";
position: absolute;
inset: 0;
border-radius: 50%;
border: .008em solid rgba(255,255,255,.2);
}
.n4-houston .n4-sat {
position: absolute;
inset: 0;
animation: n4-houston-spin calc(9s / var(--k)) linear infinite;
}
.n4-houston .n4-sat::after {
content: "";
position: absolute;
left: 50%;
top: -.035em;
width: .07em;
height: .07em;
margin-left: -.035em;
border-radius: 50%;
background: #fff;
box-shadow: 0 0 .06em .02em #fff,0 0 .22em color-mix(in srgb,var(--accent) 90%,#fff);
}
.n4-houston .n4-copy>* {
animation: n4-houston-fade calc(1s / var(--k)) cubic-bezier(.2,.7,.2,1) both;
}
.n4-houston .n4-copy>:nth-child(2) {
animation-delay: calc(.15s / var(--k));
}
.n4-houston .n4-copy>:nth-child(3) {
animation-delay: calc(.3s / var(--k));
}
.n4-houston .n4-copy>:nth-child(4) {
animation-delay: calc(.45s / var(--k));
}
@keyframes n4-houston-z {
0%,24.9% {
z-index: 0;
}
25%,74.9% {
z-index: 3;
}
75%,100% {
z-index: 0;
}
}
</style>
</head>
<body>
<main class="n4-houston">
<div class="n4-stars" data-depth="10" aria-hidden="true"></div>
<div class="n4-stars2" data-depth="26" aria-hidden="true"></div>
<div class="n4-copy">
<p class="n4-num" aria-hidden="true">
<b>4</b>
<span class="n4-o" data-depth="-14"><span class="n4-moon"></span><span class="n4-orbit"><span class="n4-sat"></span></span></span>
<b>4</b>
</p>
<h1 class="n4-title">Houston, tenemos un problema.</h1>
<p class="n4-sub">Esta página ha salido de órbita. Te devolvemos a la base antes de que se acabe el oxígeno.</p>
<a class="n4-cta" href="/">Volver a la base</a>
</div>
</main>
<script>
document.querySelectorAll(".n4-houston").forEach((el) => {
const layers = el.querySelectorAll("[data-depth]");
const move = (e) => {
const r = el.getBoundingClientRect();
const x = (e.clientX - r.left) / r.width - 0.5;
const y = (e.clientY - r.top) / r.height - 0.5;
layers.forEach((l) => {
const d = Number(l.dataset.depth);
l.style.transform = `translate3d(${-x * d}px, ${-y * d}px, 0)`;
});
};
el.addEventListener("pointermove", move);
});
</script>
</body>
</html>
Prompt para IA
Pégalo en ChatGPT, Claude o Cursor y adaptará el bloque a tu proyecto con estos ajustes, aunque no uses React.
Más en 404
Dónde usarlo
Una página 404 con algo de humor demuestra que alguien cuida la web, aunque un enlace haya fallado. El clásico «Houston, tenemos un problema» lo consigue en una línea, y el satélite en órbita entretiene mientras se lee. Va bien en una startup de software, una academia de programación o un podcast de ciencia.
Las estrellas se desplazan un poco con el ratón y dan profundidad; en el móvil se quedan quietas y la página sigue viéndose bien. Cambia el azul claro por el color de tu marca y deja la frase, que casi todo el mundo la reconoce.