Error 404 · Mar de la Tranquilidad
L’Aigle s’est posé… sur la mauvaise page.
Un petit pas pour l’utilisateur, un grand 404 pour l’humanité.
Décoller vers l’accueilHTML + CSS404
404 Alunissage
Le module lunaire descend moteur allumé, soulève la poussière en se posant, puis le message apparaît.
Réglages
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 introuvable</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">Erreur 404 · Mer de la Tranquillité</span>
<h1 class="n4-title">L’Aigle s’est posé… sur la mauvaise page.</h1>
<p class="n4-sub">Un petit pas pour l’utilisateur, un grand 404 pour l’humanité.</p>
<a class="n4-cta" href="/">Décoller vers l’accueil</a>
</div>
</main>
</body>
</html>
Prompt pour l’IA
Collez-le dans ChatGPT, Claude ou Cursor : le bloc sera adapté à votre projet avec ces réglages, même sans React.
Plus dans 404
Où l’utiliser
Cette page raconte une petite histoire avant de parler : la descente, le contact, un nuage de poussière, puis le texte. Cette courte attente pousse les visiteurs à regarder plutôt qu’à fermer l’onglet. Une agence créative, un studio d’animation ou un portfolio avec de l’humour tireront le meilleur de cette page 404 animée.
Le texte par défaut détourne le « petit pas pour l’homme » : gardez-le si votre public saisit la référence. Si l’alunissage vous paraît long, augmentez un peu la vitesse. Pour un site d’assistance où l’on est pressé, préférez un design plus sobre.