# Arcade breakout 404 > An arcade cabinet with a tube screen where the bricks spell 404; the paddle plays itself until you take over. - Category: [404](https://library.aimran.es/components/404) - Built with: HTML + CSS - Live editor: https://library.aimran.es/blocks/404-arcade - Library: AIMRAN Library (https://library.aimran.es), free, no sign-up, by Aimran Oukham ## Where to use it This error page puts a small brick breaker game inside an arcade cabinet with a glowing marquee, scanlines and a curved tube screen. The bricks are laid out as a pixel 404 in five colored rows, the ball bounces on its own and the paddle follows it, so the page is alive even if nobody touches it. Move the pointer over the screen or press the arrow keys and you control the paddle for a few seconds. Points are counted in the header. The game runs on a small canvas, and reduced motion waits for your first move. ## Code ### HTML ```html 404 · Page not found

Game over for this page.

The level you're looking for is no longer in the machine. Break a few bricks or go back to the main menu.

Back to the menu

``` ### CSS ```css .n4-arcade { --accent: #ffd43b; --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-arcade *,.n4-arcade *::before,.n4-arcade *::after { box-sizing: border-box; } .n4-arcade .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-arcade .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-arcade .n4-sub { margin: 0; max-width: 34em; font-size: clamp(13px,2.4cqmin,18px); color: #a1a1a6; text-wrap: balance; } .n4-arcade .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-arcade .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-arcade .n4-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 32px -10px var(--accent); } .n4-arcade .n4-cta:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; } .n4-arcade .n4-stars,.n4-arcade .n4-stars2 { position: absolute; inset: -4%; pointer-events: none; } .n4-arcade .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-arcade-tw calc(5s / var(--k)) ease-in-out infinite alternate; } .n4-arcade .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-arcade-tw calc(7s / var(--k)) ease-in-out infinite alternate-reverse; } .n4-arcade [data-depth] { transition: transform .9s cubic-bezier(.2,.7,.2,1); } @keyframes n4-arcade-tw { from { opacity: .3; } } @keyframes n4-arcade-spin { to { transform: rotate(1turn); } } @keyframes n4-arcade-fade { from { opacity: 0; transform: translateY(10px); } } @media (prefers-reduced-motion:reduce) { .n4-arcade *,.n4-arcade *::before,.n4-arcade *::after { animation: none!important; transition: none!important; } } .n4-arcade { background: radial-gradient(circle at 30% 30%,rgba(255,93,93,.18) 0 .5cqmin,transparent .6cqmin) 0 0/8cqmin 8cqmin,radial-gradient(circle at 70% 70%,rgba(77,171,247,.18) 0 .45cqmin,transparent .55cqmin) 0 0/6cqmin 6cqmin,radial-gradient(circle at 50% 20%,rgba(255,212,59,.14) 0 .35cqmin,transparent .45cqmin) 0 0/5cqmin 5cqmin,radial-gradient(70% 60% at 50% 30%,#151c2f,#06080f 75%); color: #eef3ff; } .n4-arcade .n4-cab { width: min(62cqmin,430px); font-size: min(2cqmin,14px); margin-bottom: 1.6cqmin; padding: 1em 1.2em 1.3em; border-radius: 1.4em 1.4em .8em .8em; background: linear-gradient(#25252c,#111115); box-shadow: inset 0 0 0 .2em #34343d,0 2em 3em -1.5em #000; } .n4-arcade .n4-marq { margin: 0 0 .7em; padding: .5em; border-radius: .5em; background: linear-gradient(#0b0b0e,#18181d); font: 800 1.5em/1 ui-monospace,"SF Mono",Menlo,Consolas,monospace; letter-spacing: .16em; text-transform: uppercase; color: var(--accent); text-shadow: 0 0 .4em color-mix(in srgb,var(--accent) 70%,transparent); box-shadow: inset 0 0 0 .1em #2e2e36; } .n4-arcade .n4-hud { display: flex; align-items: baseline; gap: .5em; margin-bottom: .55em; padding: 0 .3em; font: 700 .85em/1 ui-monospace,"SF Mono",Menlo,Consolas,monospace; text-transform: uppercase; letter-spacing: .12em; color: #8e98ad; } .n4-arcade .n4-hud b { color: #eef3ff; font-size: 1.15em; } .n4-arcade .n4-hud b:first-of-type { margin-right: auto; } .n4-arcade .n4-screen { position: relative; overflow: hidden; border-radius: 1.2em/1em; background: #060b08; box-shadow: 0 0 0 .45em #0a0a0c,0 0 0 calc(.45em + 1px) #2b2b33; } .n4-arcade .n4-screen::after { content: ""; position: absolute; inset: 0; pointer-events: none; border-radius: inherit; background: repeating-linear-gradient(rgba(0,0,0,.3) 0 1px,transparent 1px 3px),radial-gradient(120% 90% at 50% 50%,transparent 58%,rgba(0,0,0,.65)); box-shadow: inset 0 0 2em rgba(120,255,170,.08); } .n4-arcade .n4-cv { display: block; width: 100%; height: auto; image-rendering: pixelated; cursor: ew-resize; touch-action: none; filter: saturate(1.15) contrast(1.05); } .n4-arcade .n4-cv:focus-visible { outline: 2px solid var(--accent); outline-offset: -4px; } .n4-arcade .n4-title { font-size: clamp(20px,5cqmin,42px); font-weight: 800; letter-spacing: -.03em; } .n4-arcade .n4-sub { color: #a3aec4; } .n4-arcade .n4-cta { background: var(--accent); color: #14110a; } ``` ### JavaScript ```js document.querySelectorAll(".n4-arcade").forEach((el) => { const cv = el.querySelector(".n4-cv"); const ctx = cv.getContext("2d"); const score = el.querySelector(".n4-score"); const rm = matchMedia("(prefers-reduced-motion: reduce)").matches; const k = parseFloat(getComputedStyle(el).getPropertyValue("--k")) || 1; const W = 260, H = 160, BW = 18, BH = 8; const GLYPH = { "4": ["101", "101", "111", "001", "001"], "0": ["111", "101", "101", "101", "111"] }; const COLS = ["#ff5d5d", "#ff9f43", "#ffd43b", "#51cf66", "#4dabf7"]; let bricks = []; const build = () => { bricks = []; let gx = 0; for (const ch of "404") { GLYPH[ch].forEach((row, y) => row.split("").forEach((b, x) => { if (b === "1") bricks.push({ x: 21 + (gx + x) * 20, y: 16 + y * 10, c: COLS[y], on: true }); })); gx += 4; } }; let px = W / 2, target = W / 2, manual = 0, pts = 0, raf = 0, last = 0, started = !rm; const ball = { x: W / 2, y: H - 30, vx: 1.2, vy: -1.6 }; const reset = () => { ball.x = px; ball.y = H - 24; ball.vx = (Math.random() < 0.5 ? -1 : 1) * 1.2; ball.vy = -1.6; }; const step = (f) => { const now = performance.now(); if (now > manual) target = ball.x + Math.sin(now / 700) * 10; px += (target - px) * (now > manual ? 0.14 : 0.4); px = Math.max(20, Math.min(W - 20, px)); ball.x += ball.vx * f; ball.y += ball.vy * f; if (ball.x < 3 || ball.x > W - 3) { ball.vx *= -1; ball.x = Math.max(3, Math.min(W - 3, ball.x)); } if (ball.y < 3) ball.vy = Math.abs(ball.vy); if (ball.vy > 0 && ball.y > H - 15 && ball.y < H - 6 && Math.abs(ball.x - px) < 23) { ball.vy = -Math.abs(ball.vy); ball.vx = (ball.x - px) / 12; if (Math.abs(ball.vx) < 0.5) ball.vx = ball.vx < 0 ? -0.5 : 0.5; } if (ball.y > H + 6) reset(); for (const b of bricks) { if (b.on && ball.x > b.x - 2 && ball.x < b.x + BW + 2 && ball.y > b.y - 2 && ball.y < b.y + BH + 2) { b.on = false; ball.vy *= -1; pts += 10; score.textContent = String(pts).padStart(3, "0"); break; } } if (bricks.every((b) => !b.on)) build(); }; const draw = () => { ctx.fillStyle = "#060b08"; ctx.fillRect(0, 0, W, H); for (const b of bricks) { if (!b.on) continue; ctx.fillStyle = b.c; ctx.fillRect(b.x, b.y, BW, BH); ctx.fillStyle = "rgba(255,255,255,.28)"; ctx.fillRect(b.x, b.y, BW, 2); } ctx.fillStyle = "#e9f5ec"; ctx.fillRect(Math.round(px - 20), H - 12, 40, 5); ctx.fillRect(Math.round(ball.x - 2), Math.round(ball.y - 2), 4, 4); }; const loop = (t) => { const f = last ? Math.min(3, (t - last) / 16.67) * k : 1; last = t; step(f); draw(); raf = requestAnimationFrame(loop); }; const start = () => { if (!started) { started = true; raf = requestAnimationFrame(loop); } }; cv.addEventListener("pointermove", (e) => { const r = cv.getBoundingClientRect(); target = ((e.clientX - r.left) / r.width) * W; manual = performance.now() + 3000; }); cv.addEventListener("pointerdown", start); cv.addEventListener("keydown", (e) => { if (e.key !== "ArrowLeft" && e.key !== "ArrowRight") return; e.preventDefault(); target = px + (e.key === "ArrowLeft" ? -26 : 26); manual = performance.now() + 3000; start(); }); build(); draw(); if (started) raf = requestAnimationFrame(loop); }); ``` ### React ```tsx // @ts-nocheck: setup() es JavaScript del DOM sin tipos. import { useEffect, useRef } from "react"; const css = ` .n4-arcade { --accent: #ffd43b; --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-arcade *,.n4-arcade *::before,.n4-arcade *::after { box-sizing: border-box; } .n4-arcade .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-arcade .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-arcade .n4-sub { margin: 0; max-width: 34em; font-size: clamp(13px,2.4cqmin,18px); color: #a1a1a6; text-wrap: balance; } .n4-arcade .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-arcade .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-arcade .n4-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 32px -10px var(--accent); } .n4-arcade .n4-cta:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; } .n4-arcade .n4-stars,.n4-arcade .n4-stars2 { position: absolute; inset: -4%; pointer-events: none; } .n4-arcade .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-arcade-tw calc(5s / var(--k)) ease-in-out infinite alternate; } .n4-arcade .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-arcade-tw calc(7s / var(--k)) ease-in-out infinite alternate-reverse; } .n4-arcade [data-depth] { transition: transform .9s cubic-bezier(.2,.7,.2,1); } @keyframes n4-arcade-tw { from { opacity: .3; } } @keyframes n4-arcade-spin { to { transform: rotate(1turn); } } @keyframes n4-arcade-fade { from { opacity: 0; transform: translateY(10px); } } @media (prefers-reduced-motion:reduce) { .n4-arcade *,.n4-arcade *::before,.n4-arcade *::after { animation: none!important; transition: none!important; } } .n4-arcade { background: radial-gradient(circle at 30% 30%,rgba(255,93,93,.18) 0 .5cqmin,transparent .6cqmin) 0 0/8cqmin 8cqmin,radial-gradient(circle at 70% 70%,rgba(77,171,247,.18) 0 .45cqmin,transparent .55cqmin) 0 0/6cqmin 6cqmin,radial-gradient(circle at 50% 20%,rgba(255,212,59,.14) 0 .35cqmin,transparent .45cqmin) 0 0/5cqmin 5cqmin,radial-gradient(70% 60% at 50% 30%,#151c2f,#06080f 75%); color: #eef3ff; } .n4-arcade .n4-cab { width: min(62cqmin,430px); font-size: min(2cqmin,14px); margin-bottom: 1.6cqmin; padding: 1em 1.2em 1.3em; border-radius: 1.4em 1.4em .8em .8em; background: linear-gradient(#25252c,#111115); box-shadow: inset 0 0 0 .2em #34343d,0 2em 3em -1.5em #000; } .n4-arcade .n4-marq { margin: 0 0 .7em; padding: .5em; border-radius: .5em; background: linear-gradient(#0b0b0e,#18181d); font: 800 1.5em/1 ui-monospace,"SF Mono",Menlo,Consolas,monospace; letter-spacing: .16em; text-transform: uppercase; color: var(--accent); text-shadow: 0 0 .4em color-mix(in srgb,var(--accent) 70%,transparent); box-shadow: inset 0 0 0 .1em #2e2e36; } .n4-arcade .n4-hud { display: flex; align-items: baseline; gap: .5em; margin-bottom: .55em; padding: 0 .3em; font: 700 .85em/1 ui-monospace,"SF Mono",Menlo,Consolas,monospace; text-transform: uppercase; letter-spacing: .12em; color: #8e98ad; } .n4-arcade .n4-hud b { color: #eef3ff; font-size: 1.15em; } .n4-arcade .n4-hud b:first-of-type { margin-right: auto; } .n4-arcade .n4-screen { position: relative; overflow: hidden; border-radius: 1.2em/1em; background: #060b08; box-shadow: 0 0 0 .45em #0a0a0c,0 0 0 calc(.45em + 1px) #2b2b33; } .n4-arcade .n4-screen::after { content: ""; position: absolute; inset: 0; pointer-events: none; border-radius: inherit; background: repeating-linear-gradient(rgba(0,0,0,.3) 0 1px,transparent 1px 3px),radial-gradient(120% 90% at 50% 50%,transparent 58%,rgba(0,0,0,.65)); box-shadow: inset 0 0 2em rgba(120,255,170,.08); } .n4-arcade .n4-cv { display: block; width: 100%; height: auto; image-rendering: pixelated; cursor: ew-resize; touch-action: none; filter: saturate(1.15) contrast(1.05); } .n4-arcade .n4-cv:focus-visible { outline: 2px solid var(--accent); outline-offset: -4px; } .n4-arcade .n4-title { font-size: clamp(20px,5cqmin,42px); font-weight: 800; letter-spacing: -.03em; } .n4-arcade .n4-sub { color: #a3aec4; } .n4-arcade .n4-cta { background: var(--accent); color: #14110a; } `; // Parallax con el puntero: JavaScript del DOM, el mismo de la pestaña JS. // eslint-disable-next-line @typescript-eslint/no-explicit-any function setup(el: any) { const cv = el.querySelector(".n4-cv"); const ctx = cv.getContext("2d"); const score = el.querySelector(".n4-score"); const rm = matchMedia("(prefers-reduced-motion: reduce)").matches; const k = parseFloat(getComputedStyle(el).getPropertyValue("--k")) || 1; const W = 260, H = 160, BW = 18, BH = 8; const GLYPH = { "4": ["101", "101", "111", "001", "001"], "0": ["111", "101", "101", "101", "111"] }; const COLS = ["#ff5d5d", "#ff9f43", "#ffd43b", "#51cf66", "#4dabf7"]; let bricks = []; const build = () => { bricks = []; let gx = 0; for (const ch of "404") { GLYPH[ch].forEach((row, y) => row.split("").forEach((b, x) => { if (b === "1") bricks.push({ x: 21 + (gx + x) * 20, y: 16 + y * 10, c: COLS[y], on: true }); })); gx += 4; } }; let px = W / 2, target = W / 2, manual = 0, pts = 0, raf = 0, last = 0, started = !rm; const ball = { x: W / 2, y: H - 30, vx: 1.2, vy: -1.6 }; const reset = () => { ball.x = px; ball.y = H - 24; ball.vx = (Math.random() < 0.5 ? -1 : 1) * 1.2; ball.vy = -1.6; }; const step = (f) => { const now = performance.now(); if (now > manual) target = ball.x + Math.sin(now / 700) * 10; px += (target - px) * (now > manual ? 0.14 : 0.4); px = Math.max(20, Math.min(W - 20, px)); ball.x += ball.vx * f; ball.y += ball.vy * f; if (ball.x < 3 || ball.x > W - 3) { ball.vx *= -1; ball.x = Math.max(3, Math.min(W - 3, ball.x)); } if (ball.y < 3) ball.vy = Math.abs(ball.vy); if (ball.vy > 0 && ball.y > H - 15 && ball.y < H - 6 && Math.abs(ball.x - px) < 23) { ball.vy = -Math.abs(ball.vy); ball.vx = (ball.x - px) / 12; if (Math.abs(ball.vx) < 0.5) ball.vx = ball.vx < 0 ? -0.5 : 0.5; } if (ball.y > H + 6) reset(); for (const b of bricks) { if (b.on && ball.x > b.x - 2 && ball.x < b.x + BW + 2 && ball.y > b.y - 2 && ball.y < b.y + BH + 2) { b.on = false; ball.vy *= -1; pts += 10; score.textContent = String(pts).padStart(3, "0"); break; } } if (bricks.every((b) => !b.on)) build(); }; const draw = () => { ctx.fillStyle = "#060b08"; ctx.fillRect(0, 0, W, H); for (const b of bricks) { if (!b.on) continue; ctx.fillStyle = b.c; ctx.fillRect(b.x, b.y, BW, BH); ctx.fillStyle = "rgba(255,255,255,.28)"; ctx.fillRect(b.x, b.y, BW, 2); } ctx.fillStyle = "#e9f5ec"; ctx.fillRect(Math.round(px - 20), H - 12, 40, 5); ctx.fillRect(Math.round(ball.x - 2), Math.round(ball.y - 2), 4, 4); }; const loop = (t) => { const f = last ? Math.min(3, (t - last) / 16.67) * k : 1; last = t; step(f); draw(); raf = requestAnimationFrame(loop); }; const start = () => { if (!started) { started = true; raf = requestAnimationFrame(loop); } }; cv.addEventListener("pointermove", (e) => { const r = cv.getBoundingClientRect(); target = ((e.clientX - r.left) / r.width) * W; manual = performance.now() + 3000; }); cv.addEventListener("pointerdown", start); cv.addEventListener("keydown", (e) => { if (e.key !== "ArrowLeft" && e.key !== "ArrowRight") return; e.preventDefault(); target = px + (e.key === "ArrowLeft" ? -26 : 26); manual = performance.now() + 3000; start(); }); build(); draw(); if (started) raf = requestAnimationFrame(loop); return () => cancelAnimationFrame(raf); } export default function NotFoundArcade() { const ref = useRef(null); useEffect(() => { const el = ref.current?.firstElementChild; return el ? setup(el) : undefined; }, []); return ( <>

Game over for this page.

The level you're looking for is no longer in the machine. Break a few bricks or go back to the main menu.

Back to the menu

); } ``` ## Prompt for AI assistants Paste this into ChatGPT, Claude, Cursor, v0 or Lovable to adapt the block to your stack (Tailwind, Vue, Svelte…): ````text I want to add the “Arcade breakout 404” block (404) from AIMRAN Library to my project. ## What it is An arcade cabinet with a tube screen where the bricks spell 404; the paddle plays itself until you take over. ## Chosen settings - Accent color: #ffd43b - Speed: 1x (from 0.5 to 2x) - Title: "Fin de la partida para esta página." - Message: "La pantalla que buscas ya no está en la máquina. Rompe unos cuantos ladrillos o vuelve al menú principal." - Button: "Volver al menú" ## What I need 1. Add it to my project with the same look and animation as the reference code: same sizes, colours, radii, shadows, timings and easing. 2. It is built with plain HTML and CSS (the reference wraps it in a React component with its CSS). If my project uses something else (Vue, Svelte, Astro, plain HTML…), translate it without losing any behaviour. If I use Tailwind, turn the styles into classes; if not, keep the CSS in its own file. 3. Expose the settings above as props (or CSS variables) with those values as defaults. 4. Make it work well on phones: nothing that depends only on hover, touch targets of at least 44 px and no overflow on 320 px screens. 5. Make it look right in light and dark mode. 6. Keep it accessible: semantic HTML, roles and aria-* where needed, visible focus and keyboard support. 7. Respect prefers-reduced-motion: with reduced motion, no big animations but the same end result. ## Reference code ```tsx // @ts-nocheck: setup() es JavaScript del DOM sin tipos. import { useEffect, useRef } from "react"; const css = ` .n4-arcade { --accent: #ffd43b; --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-arcade *,.n4-arcade *::before,.n4-arcade *::after { box-sizing: border-box; } .n4-arcade .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-arcade .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-arcade .n4-sub { margin: 0; max-width: 34em; font-size: clamp(13px,2.4cqmin,18px); color: #a1a1a6; text-wrap: balance; } .n4-arcade .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-arcade .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-arcade .n4-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 32px -10px var(--accent); } .n4-arcade .n4-cta:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; } .n4-arcade .n4-stars,.n4-arcade .n4-stars2 { position: absolute; inset: -4%; pointer-events: none; } .n4-arcade .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-arcade-tw calc(5s / var(--k)) ease-in-out infinite alternate; } .n4-arcade .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-arcade-tw calc(7s / var(--k)) ease-in-out infinite alternate-reverse; } .n4-arcade [data-depth] { transition: transform .9s cubic-bezier(.2,.7,.2,1); } @keyframes n4-arcade-tw { from { opacity: .3; } } @keyframes n4-arcade-spin { to { transform: rotate(1turn); } } @keyframes n4-arcade-fade { from { opacity: 0; transform: translateY(10px); } } @media (prefers-reduced-motion:reduce) { .n4-arcade *,.n4-arcade *::before,.n4-arcade *::after { animation: none!important; transition: none!important; } } .n4-arcade { background: radial-gradient(circle at 30% 30%,rgba(255,93,93,.18) 0 .5cqmin,transparent .6cqmin) 0 0/8cqmin 8cqmin,radial-gradient(circle at 70% 70%,rgba(77,171,247,.18) 0 .45cqmin,transparent .55cqmin) 0 0/6cqmin 6cqmin,radial-gradient(circle at 50% 20%,rgba(255,212,59,.14) 0 .35cqmin,transparent .45cqmin) 0 0/5cqmin 5cqmin,radial-gradient(70% 60% at 50% 30%,#151c2f,#06080f 75%); color: #eef3ff; } .n4-arcade .n4-cab { width: min(62cqmin,430px); font-size: min(2cqmin,14px); margin-bottom: 1.6cqmin; padding: 1em 1.2em 1.3em; border-radius: 1.4em 1.4em .8em .8em; background: linear-gradient(#25252c,#111115); box-shadow: inset 0 0 0 .2em #34343d,0 2em 3em -1.5em #000; } .n4-arcade .n4-marq { margin: 0 0 .7em; padding: .5em; border-radius: .5em; background: linear-gradient(#0b0b0e,#18181d); font: 800 1.5em/1 ui-monospace,"SF Mono",Menlo,Consolas,monospace; letter-spacing: .16em; text-transform: uppercase; color: var(--accent); text-shadow: 0 0 .4em color-mix(in srgb,var(--accent) 70%,transparent); box-shadow: inset 0 0 0 .1em #2e2e36; } .n4-arcade .n4-hud { display: flex; align-items: baseline; gap: .5em; margin-bottom: .55em; padding: 0 .3em; font: 700 .85em/1 ui-monospace,"SF Mono",Menlo,Consolas,monospace; text-transform: uppercase; letter-spacing: .12em; color: #8e98ad; } .n4-arcade .n4-hud b { color: #eef3ff; font-size: 1.15em; } .n4-arcade .n4-hud b:first-of-type { margin-right: auto; } .n4-arcade .n4-screen { position: relative; overflow: hidden; border-radius: 1.2em/1em; background: #060b08; box-shadow: 0 0 0 .45em #0a0a0c,0 0 0 calc(.45em + 1px) #2b2b33; } .n4-arcade .n4-screen::after { content: ""; position: absolute; inset: 0; pointer-events: none; border-radius: inherit; background: repeating-linear-gradient(rgba(0,0,0,.3) 0 1px,transparent 1px 3px),radial-gradient(120% 90% at 50% 50%,transparent 58%,rgba(0,0,0,.65)); box-shadow: inset 0 0 2em rgba(120,255,170,.08); } .n4-arcade .n4-cv { display: block; width: 100%; height: auto; image-rendering: pixelated; cursor: ew-resize; touch-action: none; filter: saturate(1.15) contrast(1.05); } .n4-arcade .n4-cv:focus-visible { outline: 2px solid var(--accent); outline-offset: -4px; } .n4-arcade .n4-title { font-size: clamp(20px,5cqmin,42px); font-weight: 800; letter-spacing: -.03em; } .n4-arcade .n4-sub { color: #a3aec4; } .n4-arcade .n4-cta { background: var(--accent); color: #14110a; } `; // Parallax con el puntero: JavaScript del DOM, el mismo de la pestaña JS. // eslint-disable-next-line @typescript-eslint/no-explicit-any function setup(el: any) { const cv = el.querySelector(".n4-cv"); const ctx = cv.getContext("2d"); const score = el.querySelector(".n4-score"); const rm = matchMedia("(prefers-reduced-motion: reduce)").matches; const k = parseFloat(getComputedStyle(el).getPropertyValue("--k")) || 1; const W = 260, H = 160, BW = 18, BH = 8; const GLYPH = { "4": ["101", "101", "111", "001", "001"], "0": ["111", "101", "101", "101", "111"] }; const COLS = ["#ff5d5d", "#ff9f43", "#ffd43b", "#51cf66", "#4dabf7"]; let bricks = []; const build = () => { bricks = []; let gx = 0; for (const ch of "404") { GLYPH[ch].forEach((row, y) => row.split("").forEach((b, x) => { if (b === "1") bricks.push({ x: 21 + (gx + x) * 20, y: 16 + y * 10, c: COLS[y], on: true }); })); gx += 4; } }; let px = W / 2, target = W / 2, manual = 0, pts = 0, raf = 0, last = 0, started = !rm; const ball = { x: W / 2, y: H - 30, vx: 1.2, vy: -1.6 }; const reset = () => { ball.x = px; ball.y = H - 24; ball.vx = (Math.random() < 0.5 ? -1 : 1) * 1.2; ball.vy = -1.6; }; const step = (f) => { const now = performance.now(); if (now > manual) target = ball.x + Math.sin(now / 700) * 10; px += (target - px) * (now > manual ? 0.14 : 0.4); px = Math.max(20, Math.min(W - 20, px)); ball.x += ball.vx * f; ball.y += ball.vy * f; if (ball.x < 3 || ball.x > W - 3) { ball.vx *= -1; ball.x = Math.max(3, Math.min(W - 3, ball.x)); } if (ball.y < 3) ball.vy = Math.abs(ball.vy); if (ball.vy > 0 && ball.y > H - 15 && ball.y < H - 6 && Math.abs(ball.x - px) < 23) { ball.vy = -Math.abs(ball.vy); ball.vx = (ball.x - px) / 12; if (Math.abs(ball.vx) < 0.5) ball.vx = ball.vx < 0 ? -0.5 : 0.5; } if (ball.y > H + 6) reset(); for (const b of bricks) { if (b.on && ball.x > b.x - 2 && ball.x < b.x + BW + 2 && ball.y > b.y - 2 && ball.y < b.y + BH + 2) { b.on = false; ball.vy *= -1; pts += 10; score.textContent = String(pts).padStart(3, "0"); break; } } if (bricks.every((b) => !b.on)) build(); }; const draw = () => { ctx.fillStyle = "#060b08"; ctx.fillRect(0, 0, W, H); for (const b of bricks) { if (!b.on) continue; ctx.fillStyle = b.c; ctx.fillRect(b.x, b.y, BW, BH); ctx.fillStyle = "rgba(255,255,255,.28)"; ctx.fillRect(b.x, b.y, BW, 2); } ctx.fillStyle = "#e9f5ec"; ctx.fillRect(Math.round(px - 20), H - 12, 40, 5); ctx.fillRect(Math.round(ball.x - 2), Math.round(ball.y - 2), 4, 4); }; const loop = (t) => { const f = last ? Math.min(3, (t - last) / 16.67) * k : 1; last = t; step(f); draw(); raf = requestAnimationFrame(loop); }; const start = () => { if (!started) { started = true; raf = requestAnimationFrame(loop); } }; cv.addEventListener("pointermove", (e) => { const r = cv.getBoundingClientRect(); target = ((e.clientX - r.left) / r.width) * W; manual = performance.now() + 3000; }); cv.addEventListener("pointerdown", start); cv.addEventListener("keydown", (e) => { if (e.key !== "ArrowLeft" && e.key !== "ArrowRight") return; e.preventDefault(); target = px + (e.key === "ArrowLeft" ? -26 : 26); manual = performance.now() + 3000; start(); }); build(); draw(); if (started) raf = requestAnimationFrame(loop); return () => cancelAnimationFrame(raf); } export default function NotFoundArcade() { const ref = useRef(null); useEffect(() => { const el = ref.current?.firstElementChild; return el ? setup(el) : undefined; }, []); return ( <>

Game over for this page.

The level you're looking for is no longer in the machine. Break a few bricks or go back to the main menu.

Back to the menu

); } ``` Give me the complete final code, ready to paste, and tell me in one line where to put it in my project. ````