# Revolving door menu
> A revolving door seen from above: push it and it spins with inertia until a section faces the entrance.
- Category: [Navigation](https://library.aimran.es/components/navigation)
- Built with: HTML + CSS
- Live editor: https://library.aimran.es/blocks/uv-nav-revolving-door
- Library: AIMRAN Library (https://library.aimran.es), free, no sign-up, by Aimran Oukham
## Where to use it
A menu drawn as a revolving door seen from above, with curved walls, glass wings and a mat at the entrance. Each quarter holds a section, and the one that ends up facing the entrance is the active one. Push the door with a finger or the mouse and it keeps turning with inertia before snapping into place, or use the wheel, arrow keys or a click on any name.
The main color tints the glass wings and the active label, the secondary color the walls. Four sections match the four wings; write a short description for each so the panel beside the door explains it.
## Code
### HTML
```html
ReceptionGround floor, open 8 am to 8 pm.
OfficesFlexible desks on floors 1 to 6.
TerraceRiver views and coffee outdoors.
AuditoriumTwo hundred seats for talks and premieres.
AuditoriumTwo hundred seats for talks and premieres.
);
}
```
## 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 “Revolving door menu” block (Navigation) from AIMRAN Library to my project.
## What it is
A revolving door seen from above: push it and it spins with inertia until a section faces the entrance.
## Chosen settings
- Main color: #0ea5e9
- Secondary color: #94a3b8
- Size: 16px (from 12 to 24px)
- Speed: 1x (from 0.5 to 2x)
- Text: "Edificio"
## 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, el mismo de la pestaña JS.
import { useEffect, useRef, type CSSProperties } from "react";
const css = `
.uvq12-rv {
font-family: -apple-system,BlinkMacSystemFont,"SF Pro Text","Inter",system-ui,sans-serif;
font-size: var(--s);
color: var(--fg);
-webkit-tap-highlight-color: transparent;
display: flex;
align-items: center;
gap: 1.1em;
width: 22em;
}
.uvq12-rv .dr {
position: relative;
flex: none;
width: 11.5em;
height: 11.5em;
touch-action: none;
cursor: grab;
}
.uvq12-rv.drag .dr {
cursor: grabbing;
}
.uvq12-rv svg {
position: absolute;
inset: 0;
width: 100%;
height: 100%;
overflow: visible;
}
.uvq12-rv .fl {
fill: color-mix(in srgb,var(--fg) 4%,var(--bg));
stroke: color-mix(in srgb,var(--fg) 10%,transparent);
stroke-width: 1;
}
.uvq12-rv .wl {
fill: none;
stroke: var(--c2);
stroke-width: 7;
stroke-linecap: round;
}
.uvq12-rv .mt {
fill: color-mix(in srgb,var(--c1) 30%,transparent);
}
.uvq12-rv .ro path {
stroke: color-mix(in srgb,var(--c1) 70%,transparent);
stroke-width: 4;
stroke-linecap: round;
filter: drop-shadow(0 0 3px color-mix(in srgb,var(--c1) 50%,transparent));
}
.uvq12-rv .ro circle {
fill: var(--c2);
stroke: var(--bg);
stroke-width: 2;
}
.uvq12-rv [role="tab"] {
font: inherit;
color: inherit;
border: 0;
margin: 0;
background: none;
cursor: pointer;
-webkit-tap-highlight-color: transparent;
position: absolute;
transform: translate(-50%,-50%);
padding: .3em .5em;
border-radius: .6em;
font-size: .72em;
font-weight: 650;
white-space: nowrap;
color: color-mix(in srgb,var(--fg) 55%,transparent);
transition: color calc(0.25s / var(--k)) cubic-bezier(.25,.1,.25,1),background calc(0.25s / var(--k)) cubic-bezier(.25,.1,.25,1);
}
.uvq12-rv [role="tab"]:hover {
color: var(--fg);
background: color-mix(in srgb,var(--fg) 6%,transparent);
}
.uvq12-rv [role="tab"][aria-selected="true"] {
color: #fff;
background: var(--c1);
}
.uvq12-rv [role="tab"]:focus-visible {
outline: 2px solid var(--c1);
outline-offset: 2px;
}
.uvq12-rv .in {
flex: 1;
min-width: 0;
}
.uvq12-rv .pn {
display: flex;
flex-direction: column;
gap: .3em;
animation: uvq12-rv calc(0.4s / var(--k)) cubic-bezier(.22,1,.36,1);
}
.uvq12-rv .pn[hidden] {
display: none;
}
.uvq12-rv .pn b {
font-size: 1.25em;
letter-spacing: -.02em;
}
.uvq12-rv .pn span {
font-size: .8em;
line-height: 1.45;
color: color-mix(in srgb,var(--fg) 55%,transparent);
}
@keyframes uvq12-rv {
from {
opacity: 0;
transform: translateY(.4em);
}
}
@media (prefers-reduced-motion:reduce) {
.uvq12-rv,.uvq12-rv *,.uvq12-rv *::before,.uvq12-rv *::after {
animation-duration: .01ms!important;
animation-iteration-count: 1!important;
transition-duration: .01ms!important;
}
}
`;
// Interacción en JavaScript del DOM: la misma que en la pestaña JS.
// eslint-disable-next-line @typescript-eslint/no-explicit-any
function setup(el: any) {
const dr=el.querySelector(".dr"),ro=el.querySelector(".ro");let r=0,v=0,tg=0,raf=0,dn=null;const ps=[...el.querySelectorAll('[role="tabpanel"]')];const tb=[...el.querySelectorAll('[role="tab"]')];const sel=(t,f)=>{const i=tb.indexOf(t);tb.forEach((x,j)=>{x.setAttribute("aria-selected",String(j===i));x.tabIndex=j===i?0:-1});ps.forEach((p,j)=>{p.hidden=j!==i});aim(i);if(f)t.focus()};tb.forEach(t=>t.addEventListener("click",()=>sel(t)));el.addEventListener("keydown",e=>{const i=tb.indexOf(document.activeElement);if(i<0)return;const n={ArrowRight:i+1,ArrowDown:i+1,ArrowLeft:i-1,ArrowUp:i-1,Home:0,End:tb.length-1}[e.key];if(n===undefined)return;e.preventDefault();sel(tb[(n+tb.length)%tb.length],1)});
const rm=matchMedia("(prefers-reduced-motion: reduce)").matches;
const draw=()=>{ro.setAttribute("transform","rotate("+r.toFixed(2)+" 100 100)");tb.forEach((b,i)=>{const a=(90+i*90+r)*Math.PI/180;b.style.left=(50+Math.cos(a)*23).toFixed(2)+"%";b.style.top=(50+Math.sin(a)*23).toFixed(2)+"%"})};
const loop=()=>{v+=(tg-r)*.08;v*=.8;r+=v;if(Math.abs(tg-r)<.05&&Math.abs(v)<.05){r=tg;v=0;draw();raf=0;return}draw();raf=requestAnimationFrame(loop)};
function aim(i){tg=r+((((-i*90-r)%360)+540)%360-180);if(rm){r=tg;v=0;draw();return}if(!raf)raf=requestAnimationFrame(loop)}
const ang=e=>{const b=dr.getBoundingClientRect();return Math.atan2(e.clientY-b.top-b.height/2,e.clientX-b.left-b.width/2)*180/Math.PI};
dr.addEventListener("pointerdown",e=>{cancelAnimationFrame(raf);raf=0;dn={a:ang(e),r,m:false,t:e.timeStamp,w:0}});
dr.addEventListener("pointermove",e=>{if(!dn)return;let d=ang(e)-dn.a;if(d>180)d-=360;if(d<-180)d+=360;if(!dn.m&&Math.abs(d)>4){dn.m=true;el.classList.add("drag");dr.setPointerCapture(e.pointerId)}if(!dn.m)return;const nr=dn.r+d,dt=Math.max(1,e.timeStamp-dn.t);dn.w=(nr-r)/dt;dn.t=e.timeStamp;r=nr;draw();if(d>150||d<-150){dn.a=ang(e);dn.r=r}});
const up=()=>{if(!dn)return;const d=dn;dn=null;el.classList.remove("drag");if(!d.m)return;const k=((Math.round(-(r+d.w*220)/90)%4)+4)%4;v=d.w*16;sel(tb[k])};
dr.addEventListener("pointerup",up);dr.addEventListener("pointercancel",up);
dr.addEventListener("wheel",e=>{e.preventDefault();const i=tb.findIndex(b=>b.getAttribute("aria-selected")==="true");if(Math.abs(e.deltaY)>4)sel(tb[(i+(e.deltaY>0?1:-1)+4)%4])},{passive:false});
draw();return()=>cancelAnimationFrame(raf)
}
export default function NavRevolvingDoor() {
const ref = useRef(null);
useEffect(() => {
const el = ref.current?.firstElementChild;
return el ? setup(el) : undefined;
}, []);
return (
<>
ReceptionGround floor, open 8 am to 8 pm.
OfficesFlexible desks on floors 1 to 6.
TerraceRiver views and coffee outdoors.
AuditoriumTwo hundred seats for talks and premieres.
);
}
```
Give me the complete final code, ready to paste, and tell me in one line where to put it in my project.
````