Puerta 404
Este vuelo no sale de aquí.
La puerta que buscas se ha cerrado o nunca estuvo en esta terminal. Revisa tu tarjeta de embarque o vuelve al vestíbulo.
Volver a salidasHTML + CSS404
Airport departures 404
A split flap departures board flips letter by letter until it shows flight 404 with an unknown destination.
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-airport {
--accent: #fbbf24;
--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-airport *,.n4-airport *::before,.n4-airport *::after {
box-sizing: border-box;
}
.n4-airport .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-airport .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-airport .n4-sub {
margin: 0;
max-width: 34em;
font-size: clamp(13px,2.4cqmin,18px);
color: #a1a1a6;
text-wrap: balance;
}
.n4-airport .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-airport .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-airport .n4-cta:hover {
transform: translateY(-2px);
box-shadow: 0 12px 32px -10px var(--accent);
}
.n4-airport .n4-cta:focus-visible {
outline: 2px solid var(--accent);
outline-offset: 3px;
}
.n4-airport .n4-stars,.n4-airport .n4-stars2 {
position: absolute;
inset: -4%;
pointer-events: none;
}
.n4-airport .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-airport-tw calc(5s / var(--k)) ease-in-out infinite alternate;
}
.n4-airport .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-airport-tw calc(7s / var(--k)) ease-in-out infinite alternate-reverse;
}
.n4-airport [data-depth] {
transition: transform .9s cubic-bezier(.2,.7,.2,1);
}
@keyframes n4-airport-tw {
from {
opacity: .3;
}
}
@keyframes n4-airport-spin {
to {
transform: rotate(1turn);
}
}
@keyframes n4-airport-fade {
from {
opacity: 0;
transform: translateY(10px);
}
}
@media (prefers-reduced-motion:reduce) {
.n4-airport *,.n4-airport *::before,.n4-airport *::after {
animation: none!important;
transition: none!important;
}
}
.n4-airport {
background: radial-gradient(90% 70% at 50% 20%,#1b2a4a,#0a1020 70%);
color: #eef2ff;
}
.n4-airport::before {
content: "";
position: absolute;
left: 0;
right: 0;
bottom: 0;
height: 30%;
background: repeating-linear-gradient(90deg,rgba(255,255,255,.03) 0 2px,transparent 2px 9cqw),linear-gradient(transparent,rgba(0,0,0,.4));
}
.n4-airport .n4-board {
display: grid;
gap: .45em;
padding: 1.1em 1.2em;
margin-bottom: 2cqmin;
border-radius: .6em;
background: #0d0f14;
box-shadow: inset 0 0 0 1px #2a2f3a,0 2.4em 4em -1.6em #000;
font: 700 clamp(8px,2.15cqmin,15px)/1 ui-monospace,"SF Mono",Menlo,Consolas,monospace;
animation: n4-airport-fade calc(.8s / var(--k)) both;
}
.n4-airport .n4-bhead {
display: flex;
gap: .12em;
text-align: left;
color: #7c8598;
}
.n4-airport .n4-bhead s {
width: .8em;
}
.n4-airport .n4-bhead span {
width: calc((var(--n) * 1.22em - .12em) / .68);
font-size: .68em;
letter-spacing: .1em;
text-transform: uppercase;
white-space: nowrap;
}
.n4-airport .n4-brow {
display: flex;
align-items: center;
gap: .12em;
}
.n4-airport .n4-brow s {
width: .8em;
}
.n4-airport .n4-brow b {
position: relative;
display: inline-grid;
place-items: center;
width: 1.1em;
height: 1.55em;
border-radius: .14em;
color: var(--accent);
background: linear-gradient(#23262e 50%,#1b1d24 50%);
box-shadow: inset 0 -1px 0 rgba(255,255,255,.04);
}
.n4-airport .n4-brow b::after {
content: "";
position: absolute;
left: 0;
right: 0;
top: 50%;
height: 1px;
background: #07080b;
}
.n4-airport .n4-flip b {
color: #f87171;
}
.n4-airport .n4-brow b.f {
animation: n4-airport-flip .07s linear;
}
.n4-airport .n4-title {
font-size: clamp(20px,5cqmin,42px);
font-weight: 700;
letter-spacing: -.025em;
}
.n4-airport .n4-cta {
background: var(--accent);
color: #111;
}
@keyframes n4-airport-flip {
50% {
transform: scaleY(.15);
filter: brightness(1.6);
}
}
</style>
</head>
<body>
<main class="n4-airport">
<div class="n4-copy">
<div class="n4-board" aria-hidden="true">
<div class="n4-bhead"><span style="--n:6">Flight</span><s></s><span style="--n:6">Destination</span><s></s><span style="--n:5">Time</span><s></s><span style="--n:3">Gate</span><s></s><span style="--n:9">Status</span></div>
<div class="n4-brow" translate="no"><b data-c="I">I</b><b data-c="B">B</b><b data-c="2">2</b><b data-c="0">0</b><b data-c="4">4</b><b data-c="5">5</b><s></s><b data-c="R">R</b><b data-c="O">O</b><b data-c="M">M</b><b data-c="A">A</b><b data-c=" "> </b><b data-c=" "> </b><s></s><b data-c="1">1</b><b data-c="0">0</b><b data-c=":">:</b><b data-c="4">4</b><b data-c="0">0</b><s></s><b data-c="B">B</b><b data-c="1">1</b><b data-c="2">2</b><s></s><b data-c="B">B</b><b data-c="O">O</b><b data-c="A">A</b><b data-c="R">R</b><b data-c="D">D</b><b data-c="I">I</b><b data-c="N">N</b><b data-c="G">G</b><b data-c=" "> </b></div>
<div class="n4-brow" translate="no"><b data-c="V">V</b><b data-c="Y">Y</b><b data-c="1">1</b><b data-c="3">3</b><b data-c="1">1</b><b data-c="2">2</b><s></s><b data-c="P">P</b><b data-c="A">A</b><b data-c="R">R</b><b data-c="I">I</b><b data-c="S">S</b><b data-c=" "> </b><s></s><b data-c="1">1</b><b data-c="0">0</b><b data-c=":">:</b><b data-c="5">5</b><b data-c="5">5</b><s></s><b data-c="A">A</b><b data-c="0">0</b><b data-c="3">3</b><s></s><b data-c="O">O</b><b data-c="N">N</b><b data-c=" "> </b><b data-c="T">T</b><b data-c="I">I</b><b data-c="M">M</b><b data-c="E">E</b><b data-c=" "> </b><b data-c=" "> </b></div>
<div class="n4-brow n4-flip" translate="no"><b data-c="4">4</b><b data-c="0">0</b><b data-c="4">4</b><b data-c=" "> </b><b data-c=" "> </b><b data-c=" "> </b><s></s><b data-c="?">?</b><b data-c="?">?</b><b data-c="?">?</b><b data-c="?">?</b><b data-c=" "> </b><b data-c=" "> </b><s></s><b data-c="-">-</b><b data-c="-">-</b><b data-c=":">:</b><b data-c="-">-</b><b data-c="-">-</b><s></s><b data-c="?">?</b><b data-c="?">?</b><b data-c="?">?</b><s></s><b data-c="N">N</b><b data-c="O">O</b><b data-c="T">T</b><b data-c=" "> </b><b data-c="F">F</b><b data-c="O">O</b><b data-c="U">U</b><b data-c="N">N</b><b data-c="D">D</b></div>
<div class="n4-brow" translate="no"><b data-c="U">U</b><b data-c="X">X</b><b data-c="7">7</b><b data-c="7">7</b><b data-c="1">1</b><b data-c="0">0</b><s></s><b data-c="B">B</b><b data-c="E">E</b><b data-c="R">R</b><b data-c="L">L</b><b data-c="I">I</b><b data-c="N">N</b><s></s><b data-c="1">1</b><b data-c="1">1</b><b data-c=":">:</b><b data-c="2">2</b><b data-c="0">0</b><s></s><b data-c="C">C</b><b data-c="0">0</b><b data-c="7">7</b><s></s><b data-c="D">D</b><b data-c="E">E</b><b data-c="L">L</b><b data-c="A">A</b><b data-c="Y">Y</b><b data-c="E">E</b><b data-c="D">D</b><b data-c=" "> </b><b data-c=" "> </b></div>
</div>
<span class="n4-tag">Gate 404</span>
<h1 class="n4-title">This flight doesn't leave from here.</h1>
<p class="n4-sub">The gate you're looking for has closed or was never in this terminal. Check your boarding pass or head back to the main hall.</p>
<a class="n4-cta" href="/">Back to departures</a>
</div>
</main>
<script>
document.querySelectorAll(".n4-airport").forEach((el) => {
const cells = el.querySelectorAll(".n4-flip b");
const C = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789?-:";
const rm = matchMedia("(prefers-reduced-motion: reduce)").matches;
const timers = [];
const flip = () => cells.forEach((b, i) => {
const fin = b.dataset.c; let n = 5 + (i % 9) * 2;
const tick = () => { b.classList.remove("f"); void b.offsetWidth; b.classList.add("f"); b.textContent = --n > 0 ? C[Math.floor(Math.random() * C.length)] : fin === " " ? "\u00a0" : fin; if (n > 0) timers.push(setTimeout(tick, 75)); };
timers.push(setTimeout(tick, 300 + i * 35));
});
if (!rm) flip();
const iv = rm ? 0 : setInterval(flip, 8000);
});
</script>
</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
See all 404Where to use it
Travel sites, airlines and booking engines lose pages all the time when routes are dropped or offers expire. This error page borrows the most recognizable object in any terminal: a departures board with flights, times, gates and status. One row keeps flipping its characters with a quick mechanical animation and always lands on flight 404, destination unknown.
The board is decorative and hidden from screen readers, while the title, message and button stay plain text. Reduced motion shows the final board straight away. Point the button to your search or departures page and adjust the amber accent.