Error 404 · Mar de la Tranquilidad
El Águila ha alunizado… en la página equivocada.
Un pequeño paso para el usuario, un error 404 para la humanidad.
Despegar hacia el inicioHTML + CSS404
404 Alunizaje
El módulo lunar baja con el motor encendido, levanta polvo al alunizar y solo entonces aparece el mensaje.
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-landing {
--accent: #ffcc4d;
--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-landing *,.n4-landing *::before,.n4-landing *::after {
box-sizing: border-box;
}
.n4-landing .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-landing .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-landing .n4-sub {
margin: 0;
max-width: 34em;
font-size: clamp(13px,2.4cqmin,18px);
color: #a1a1a6;
text-wrap: balance;
}
.n4-landing .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-landing .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-landing .n4-cta:hover {
transform: translateY(-2px);
box-shadow: 0 12px 32px -10px var(--accent);
}
.n4-landing .n4-cta:focus-visible {
outline: 2px solid var(--accent);
outline-offset: 3px;
}
.n4-landing .n4-stars,.n4-landing .n4-stars2 {
position: absolute;
inset: -4%;
pointer-events: none;
}
.n4-landing .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-landing-tw calc(5s / var(--k)) ease-in-out infinite alternate;
}
.n4-landing .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-landing-tw calc(7s / var(--k)) ease-in-out infinite alternate-reverse;
}
.n4-landing [data-depth] {
transition: transform .9s cubic-bezier(.2,.7,.2,1);
}
@keyframes n4-landing-tw {
from {
opacity: .3;
}
}
@keyframes n4-landing-spin {
to {
transform: rotate(1turn);
}
}
@keyframes n4-landing-fade {
from {
opacity: 0;
transform: translateY(10px);
}
}
@media (prefers-reduced-motion:reduce) {
.n4-landing *,.n4-landing *::before,.n4-landing *::after {
animation: none!important;
transition: none!important;
}
}
.n4-landing .n4-ghost {
position: absolute;
top: 5%;
left: 0;
right: 0;
margin: 0;
font-size: 34cqmin;
font-weight: 700;
letter-spacing: -.05em;
line-height: 1;
background: linear-gradient(180deg,color-mix(in srgb,var(--accent) 22%,transparent),transparent 85%);
-webkit-background-clip: text;
background-clip: text;
color: transparent;
}
.n4-landing .n4-ground {
position: absolute;
left: -50%;
top: 62%;
z-index: 1;
width: 200%;
height: 100%;
border-radius: 50% 50% 0 0/8% 8% 0 0;
background: radial-gradient(ellipse 3% 1% at 38% 6%,rgba(0,0,0,.4),transparent),radial-gradient(ellipse 5% 1.4% at 63% 9%,rgba(0,0,0,.35),transparent),radial-gradient(ellipse 2% .8% at 55% 14%,rgba(0,0,0,.4),transparent),linear-gradient(#9a9aa0,#3a3a3c 12%,#141416 34%,#050505);
box-shadow: 0 -1px 0 rgba(255,255,255,.35);
}
.n4-landing .n4-lm {
position: absolute;
left: 50%;
bottom: 37.5%;
z-index: 2;
width: 26cqmin;
height: auto;
margin-left: -13cqmin;
overflow: visible;
margin-bottom: -.6cqmin;
filter: drop-shadow(0 1.5cqmin 2cqmin rgba(0,0,0,.6));
animation: n4-landing-land calc(3.4s / var(--k)) cubic-bezier(.22,.9,.3,1) both;
}
.n4-landing .n4-flame {
transform-box: fill-box;
transform-origin: 50% 0;
opacity: 0;
animation: n4-landing-flick .12s steps(2) infinite,n4-landing-off calc(3.4s / var(--k)) ease-in both;
}
.n4-landing .n4-dust {
position: absolute;
left: 50%;
bottom: 34%;
z-index: 3;
width: 60cqmin;
height: 9cqmin;
margin-left: -30cqmin;
border-radius: 50%;
background: radial-gradient(ellipse at 50% 60%,rgba(210,210,215,.55),transparent 65%);
filter: blur(1cqmin);
opacity: 0;
animation: n4-landing-dust calc(2.2s / var(--k)) calc(2.9s / var(--k)) ease-out both;
}
.n4-landing .n4-copy {
position: absolute;
left: 0;
right: 0;
bottom: 5cqh;
margin: 0 auto;
}
.n4-landing .n4-copy>* {
animation: n4-landing-fade calc(1s / var(--k)) calc(3.3s / var(--k)) cubic-bezier(.2,.7,.2,1) both;
}
@keyframes n4-landing-land {
from {
transform: translateY(-80cqh);
}
88% {
transform: translateY(.5cqmin) scaleY(.96);
}
}
@keyframes n4-landing-flick {
50% {
transform: scaleY(.8);
}
}
@keyframes n4-landing-off {
from,85% {
opacity: 1;
}
to {
opacity: 0;
}
}
@keyframes n4-landing-dust {
from {
opacity: 0;
transform: scale(.25);
}
30% {
opacity: .9;
}
to {
opacity: 0;
transform: scale(1.5);
}
}
</style>
</head>
<body>
<main class="n4-landing">
<div class="n4-stars" aria-hidden="true"></div>
<p class="n4-ghost" aria-hidden="true">404</p>
<div class="n4-ground" aria-hidden="true"></div>
<svg class="n4-lm" viewBox="0 0 120 112" aria-hidden="true">
<defs>
<linearGradient id="n4ld-gold" x1="0" y1="0" x2="0" y2="1"><stop offset="0" stop-color="#ffe89a"/><stop offset=".5" stop-color="#d9a51c"/><stop offset="1" stop-color="#8a6508"/></linearGradient>
<linearGradient id="n4ld-silver" x1="0" y1="0" x2="1" y2="1"><stop offset="0" stop-color="#f2f2f7"/><stop offset=".6" stop-color="#aeaeb2"/><stop offset="1" stop-color="#636366"/></linearGradient>
<radialGradient id="n4ld-fire" cx=".5" cy="0" r="1"><stop offset="0" stop-color="#fff"/><stop offset=".3" stop-color="#ffe28a"/><stop offset=".7" stop-color="#ff7a18"/><stop offset="1" stop-color="#ff7a18" stop-opacity="0"/></radialGradient>
</defs>
<polygon class="n4-flame" points="52,88 68,88 60,118" fill="url(#n4ld-fire)"/>
<g stroke="#c7c7cc" stroke-width="2.2" stroke-linecap="round">
<line x1="34" y1="70" x2="12" y2="102"/><line x1="86" y1="70" x2="108" y2="102"/>
<line x1="40" y1="80" x2="16" y2="100"/><line x1="80" y1="80" x2="104" y2="100"/>
</g>
<ellipse cx="12" cy="103" rx="8" ry="2.4" fill="#d1d1d6"/><ellipse cx="108" cy="103" rx="8" ry="2.4" fill="#d1d1d6"/>
<polygon points="55,82 65,82 69,89 51,89" fill="#636366"/>
<polygon points="34,50 86,50 94,58 94,74 86,82 34,82 26,74 26,58" fill="url(#n4ld-gold)"/>
<path d="M34 56h52M30 66h60M34 76h52" stroke="#fff" stroke-opacity=".22" stroke-width="1"/>
<polygon points="42,22 78,22 88,34 88,50 32,50 32,34" fill="url(#n4ld-silver)"/>
<polygon points="45,29 56,29 54,40 45,40" fill="#1c1c1e"/>
<line x1="68" y1="22" x2="68" y2="11" stroke="#aeaeb2" stroke-width="1.6"/>
<circle cx="68" cy="10" r="3" fill="#d1d1d6"/>
</svg>
<div class="n4-dust" aria-hidden="true"></div>
<div class="n4-copy">
<span class="n4-tag">Error 404 · Mar de la Tranquilidad</span>
<h1 class="n4-title">El Águila ha alunizado… en la página equivocada.</h1>
<p class="n4-sub">Un pequeño paso para el usuario, un error 404 para la humanidad.</p>
<a class="n4-cta" href="/">Despegar hacia el inicio</a>
</div>
</main>
</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
Esta 404 cuenta una pequeña historia antes de decir nada: descenso, contacto, una nube de polvo y después el texto. Esa espera breve hace que la gente se quede mirando en vez de cerrar la pestaña. Una agencia creativa, un estudio de animación o un portfolio con sentido del humor le sacarán partido a esta página 404 animada.
La frase por defecto juega con el «pequeño paso para el hombre»: mantenla si tu público va a pillar la referencia. Si el alunizaje se te hace largo, sube un poco la velocidad. En una web de soporte, donde la gente va con prisa, mejor un diseño más sobrio.