# Online shop 404 > A barcode label gets scanned by a red laser again and again until a “Sold out” stamp lands on it. - Category: [404](https://library.aimran.es/components/404) - Built with: HTML + CSS - Live editor: https://library.aimran.es/blocks/404-shop - Library: AIMRAN Library (https://library.aimran.es), free, no sign-up, by Aimran Oukham ## Where to use it In an online shop most 404s come from products that no longer exist. Google still has the old URL, someone clicks it from a search, and finds nothing. An ecommerce 404 page that says “sold out” in a friendly way explains what happened, and the “Keep shopping” button puts them back in the catalogue straight away. If a product has a clear replacement, a redirect to it or to its category is better than any 404. Use this page for everything else. The white card and red accent fit most shops, and the title, message and button text are all editable. ## Code ### HTML ```html 404 · Page not found
Item 404 · Out of stock

This page is sold out.

We checked the warehouse, the back room and under the counter. The rest of the shop is still open.

Keep shopping
``` ### CSS ```css .n4-shop { --accent: #ff3b30; --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-shop *,.n4-shop *::before,.n4-shop *::after { box-sizing: border-box; } .n4-shop .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-shop .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-shop .n4-sub { margin: 0; max-width: 34em; font-size: clamp(13px,2.4cqmin,18px); color: #a1a1a6; text-wrap: balance; } .n4-shop .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-shop .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-shop .n4-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 32px -10px var(--accent); } .n4-shop .n4-cta:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; } .n4-shop .n4-stars,.n4-shop .n4-stars2 { position: absolute; inset: -4%; pointer-events: none; } .n4-shop .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-shop-tw calc(5s / var(--k)) ease-in-out infinite alternate; } .n4-shop .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-shop-tw calc(7s / var(--k)) ease-in-out infinite alternate-reverse; } .n4-shop [data-depth] { transition: transform .9s cubic-bezier(.2,.7,.2,1); } @keyframes n4-shop-tw { from { opacity: .3; } } @keyframes n4-shop-spin { to { transform: rotate(1turn); } } @keyframes n4-shop-fade { from { opacity: 0; transform: translateY(10px); } } @media (prefers-reduced-motion:reduce) { .n4-shop *,.n4-shop *::before,.n4-shop *::after { animation: none!important; transition: none!important; } } .n4-shop { background: radial-gradient(80% 60% at 50% 34%,#ffffff,#f3f2ef 60%,#e9e7e2); color: #1d1d1f; } .n4-shop .n4-label { flex: none; width: min(76cqmin,470px); height: auto; margin-bottom: 1.6cqmin; overflow: visible; filter: drop-shadow(0 .4cqmin .6cqmin rgba(0,0,0,.08)) drop-shadow(0 3cqmin 4cqmin rgba(0,0,0,.14)); animation: n4-shop-in calc(.9s / var(--k)) cubic-bezier(.2,.8,.2,1) both; } .n4-shop .n4-card { fill: #fff; } .n4-shop .n4-bars { fill: #1d1d1f; } .n4-shop .n4-code { font: 700 30px ui-monospace,"SF Mono",Menlo,Consolas,monospace; letter-spacing: 14px; fill: #1d1d1f; } .n4-shop .n4-laser { fill: var(--accent); filter: drop-shadow(0 0 3px var(--accent)); animation: n4-shop-scan calc(1.6s / var(--k)) ease-in-out infinite alternate; } .n4-shop .n4-laser rect:first-child { fill: url(#n4sh-glow); } .n4-shop .n4-stamp { transform-box: fill-box; transform-origin: center; animation: n4-shop-stamp calc(.5s / var(--k)) calc(1.8s / var(--k)) cubic-bezier(.5,0,.7,1.4) both; } .n4-shop .n4-stamp rect { fill: rgba(255,255,255,.88); stroke: var(--accent); stroke-width: 3.5; } .n4-shop .n4-stamp text { font: 900 28px -apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif; letter-spacing: 4px; fill: var(--accent); } .n4-shop .n4-tag { color: color-mix(in srgb,var(--accent) 80%,#000); } .n4-shop .n4-title { font-size: clamp(24px,6cqmin,52px); font-weight: 800; letter-spacing: -.035em; } .n4-shop .n4-sub { color: #6e6e73; } .n4-shop .n4-cta { background: #1d1d1f; color: #fff; } .n4-shop .n4-cta::after { content: "→"; transition: transform .3s cubic-bezier(.25,.1,.25,1); } .n4-shop .n4-cta:hover::after { transform: translateX(3px); } .n4-shop .n4-copy>:not(.n4-label) { animation: n4-shop-fade calc(1s / var(--k)) calc(.5s / var(--k)) cubic-bezier(.2,.7,.2,1) both; } @keyframes n4-shop-in { from { opacity: 0; transform: translateY(3cqmin) scale(.97); } } @keyframes n4-shop-scan { from { transform: translateY(34px); } to { transform: translateY(132px); } } @keyframes n4-shop-stamp { from { opacity: 0; transform: scale(1.8); } } ``` ### React ```tsx const css = ` .n4-shop { --accent: #ff3b30; --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-shop *,.n4-shop *::before,.n4-shop *::after { box-sizing: border-box; } .n4-shop .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-shop .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-shop .n4-sub { margin: 0; max-width: 34em; font-size: clamp(13px,2.4cqmin,18px); color: #a1a1a6; text-wrap: balance; } .n4-shop .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-shop .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-shop .n4-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 32px -10px var(--accent); } .n4-shop .n4-cta:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; } .n4-shop .n4-stars,.n4-shop .n4-stars2 { position: absolute; inset: -4%; pointer-events: none; } .n4-shop .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-shop-tw calc(5s / var(--k)) ease-in-out infinite alternate; } .n4-shop .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-shop-tw calc(7s / var(--k)) ease-in-out infinite alternate-reverse; } .n4-shop [data-depth] { transition: transform .9s cubic-bezier(.2,.7,.2,1); } @keyframes n4-shop-tw { from { opacity: .3; } } @keyframes n4-shop-spin { to { transform: rotate(1turn); } } @keyframes n4-shop-fade { from { opacity: 0; transform: translateY(10px); } } @media (prefers-reduced-motion:reduce) { .n4-shop *,.n4-shop *::before,.n4-shop *::after { animation: none!important; transition: none!important; } } .n4-shop { background: radial-gradient(80% 60% at 50% 34%,#ffffff,#f3f2ef 60%,#e9e7e2); color: #1d1d1f; } .n4-shop .n4-label { flex: none; width: min(76cqmin,470px); height: auto; margin-bottom: 1.6cqmin; overflow: visible; filter: drop-shadow(0 .4cqmin .6cqmin rgba(0,0,0,.08)) drop-shadow(0 3cqmin 4cqmin rgba(0,0,0,.14)); animation: n4-shop-in calc(.9s / var(--k)) cubic-bezier(.2,.8,.2,1) both; } .n4-shop .n4-card { fill: #fff; } .n4-shop .n4-bars { fill: #1d1d1f; } .n4-shop .n4-code { font: 700 30px ui-monospace,"SF Mono",Menlo,Consolas,monospace; letter-spacing: 14px; fill: #1d1d1f; } .n4-shop .n4-laser { fill: var(--accent); filter: drop-shadow(0 0 3px var(--accent)); animation: n4-shop-scan calc(1.6s / var(--k)) ease-in-out infinite alternate; } .n4-shop .n4-laser rect:first-child { fill: url(#n4sh-glow); } .n4-shop .n4-stamp { transform-box: fill-box; transform-origin: center; animation: n4-shop-stamp calc(.5s / var(--k)) calc(1.8s / var(--k)) cubic-bezier(.5,0,.7,1.4) both; } .n4-shop .n4-stamp rect { fill: rgba(255,255,255,.88); stroke: var(--accent); stroke-width: 3.5; } .n4-shop .n4-stamp text { font: 900 28px -apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif; letter-spacing: 4px; fill: var(--accent); } .n4-shop .n4-tag { color: color-mix(in srgb,var(--accent) 80%,#000); } .n4-shop .n4-title { font-size: clamp(24px,6cqmin,52px); font-weight: 800; letter-spacing: -.035em; } .n4-shop .n4-sub { color: #6e6e73; } .n4-shop .n4-cta { background: #1d1d1f; color: #fff; } .n4-shop .n4-cta::after { content: "→"; transition: transform .3s cubic-bezier(.25,.1,.25,1); } .n4-shop .n4-cta:hover::after { transform: translateX(3px); } .n4-shop .n4-copy>:not(.n4-label) { animation: n4-shop-fade calc(1s / var(--k)) calc(.5s / var(--k)) cubic-bezier(.2,.7,.2,1) both; } @keyframes n4-shop-in { from { opacity: 0; transform: translateY(3cqmin) scale(.97); } } @keyframes n4-shop-scan { from { transform: translateY(34px); } to { transform: translateY(132px); } } @keyframes n4-shop-stamp { from { opacity: 0; transform: scale(1.8); } } `; export default function NotFoundShop() { return ( <>
Item 404 · Out of stock

This page is sold out.

We checked the warehouse, the back room and under the counter. The rest of the shop is still open.

Keep shopping
); } ``` ## 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 “Online shop 404” block (404) from AIMRAN Library to my project. ## What it is A barcode label gets scanned by a red laser again and again until a “Sold out” stamp lands on it. ## Chosen settings - Accent color: #ff3b30 - Speed: 1x (from 0.5 to 2x) - Title: "This page is sold out." - Message: "We checked the warehouse, the back room and under the counter. The rest of the shop is still open." - Button: "Keep shopping" ## 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 const css = ` .n4-shop { --accent: #ff3b30; --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-shop *,.n4-shop *::before,.n4-shop *::after { box-sizing: border-box; } .n4-shop .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-shop .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-shop .n4-sub { margin: 0; max-width: 34em; font-size: clamp(13px,2.4cqmin,18px); color: #a1a1a6; text-wrap: balance; } .n4-shop .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-shop .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-shop .n4-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 32px -10px var(--accent); } .n4-shop .n4-cta:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; } .n4-shop .n4-stars,.n4-shop .n4-stars2 { position: absolute; inset: -4%; pointer-events: none; } .n4-shop .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-shop-tw calc(5s / var(--k)) ease-in-out infinite alternate; } .n4-shop .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-shop-tw calc(7s / var(--k)) ease-in-out infinite alternate-reverse; } .n4-shop [data-depth] { transition: transform .9s cubic-bezier(.2,.7,.2,1); } @keyframes n4-shop-tw { from { opacity: .3; } } @keyframes n4-shop-spin { to { transform: rotate(1turn); } } @keyframes n4-shop-fade { from { opacity: 0; transform: translateY(10px); } } @media (prefers-reduced-motion:reduce) { .n4-shop *,.n4-shop *::before,.n4-shop *::after { animation: none!important; transition: none!important; } } .n4-shop { background: radial-gradient(80% 60% at 50% 34%,#ffffff,#f3f2ef 60%,#e9e7e2); color: #1d1d1f; } .n4-shop .n4-label { flex: none; width: min(76cqmin,470px); height: auto; margin-bottom: 1.6cqmin; overflow: visible; filter: drop-shadow(0 .4cqmin .6cqmin rgba(0,0,0,.08)) drop-shadow(0 3cqmin 4cqmin rgba(0,0,0,.14)); animation: n4-shop-in calc(.9s / var(--k)) cubic-bezier(.2,.8,.2,1) both; } .n4-shop .n4-card { fill: #fff; } .n4-shop .n4-bars { fill: #1d1d1f; } .n4-shop .n4-code { font: 700 30px ui-monospace,"SF Mono",Menlo,Consolas,monospace; letter-spacing: 14px; fill: #1d1d1f; } .n4-shop .n4-laser { fill: var(--accent); filter: drop-shadow(0 0 3px var(--accent)); animation: n4-shop-scan calc(1.6s / var(--k)) ease-in-out infinite alternate; } .n4-shop .n4-laser rect:first-child { fill: url(#n4sh-glow); } .n4-shop .n4-stamp { transform-box: fill-box; transform-origin: center; animation: n4-shop-stamp calc(.5s / var(--k)) calc(1.8s / var(--k)) cubic-bezier(.5,0,.7,1.4) both; } .n4-shop .n4-stamp rect { fill: rgba(255,255,255,.88); stroke: var(--accent); stroke-width: 3.5; } .n4-shop .n4-stamp text { font: 900 28px -apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif; letter-spacing: 4px; fill: var(--accent); } .n4-shop .n4-tag { color: color-mix(in srgb,var(--accent) 80%,#000); } .n4-shop .n4-title { font-size: clamp(24px,6cqmin,52px); font-weight: 800; letter-spacing: -.035em; } .n4-shop .n4-sub { color: #6e6e73; } .n4-shop .n4-cta { background: #1d1d1f; color: #fff; } .n4-shop .n4-cta::after { content: "→"; transition: transform .3s cubic-bezier(.25,.1,.25,1); } .n4-shop .n4-cta:hover::after { transform: translateX(3px); } .n4-shop .n4-copy>:not(.n4-label) { animation: n4-shop-fade calc(1s / var(--k)) calc(.5s / var(--k)) cubic-bezier(.2,.7,.2,1) both; } @keyframes n4-shop-in { from { opacity: 0; transform: translateY(3cqmin) scale(.97); } } @keyframes n4-shop-scan { from { transform: translateY(34px); } to { transform: translateY(132px); } } @keyframes n4-shop-stamp { from { opacity: 0; transform: scale(1.8); } } `; export default function NotFoundShop() { return ( <>
Item 404 · Out of stock

This page is sold out.

We checked the warehouse, the back room and under the counter. The rest of the shop is still open.

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