# Neon ring loader

> A glowing ring with a bright half-arc spinning around, surrounded by a soft neon halo.

- Category: [Loaders](https://library.aimran.es/components/loaders)
- Built with: HTML + CSS
- Live editor: https://library.aimran.es/blocks/css-neon-ring
- Library: AIMRAN Library (https://library.aimran.es), free, no sign-up, by Aimran Oukham

## Where to use it

This neon loader belongs on dark, late-night interfaces: an esports tournament site, the ticket page of a club night or a game launcher waiting for the server. The glow is built from layered shadows in the two colors, so the ring seems to light up the space around it, and it eases in and out of each turn.

It needs a dark background to glow; on white it just looks like a blurry spinner. Saturated colors like electric pink, cyan or lime give the most convincing neon. Keep the rest of the screen dim so it becomes the focus.

## Code

### HTML

```html
<div class="ul-neon"></div>
```

### CSS

```css
.ul-neon {
  --c1: #0071e3;
  --c2: #8ec5ff;
  --s: 72px;
  /* tamaño */
  --k: 1;
  /* velocidad */
  --bg: #f5f5f7;
}

.ul-neon {
  width: var(--s);
  height: var(--s);
  border-radius: 50%;
  border: calc(var(--s) / 16) solid transparent;
  border-top-color: var(--c1);
  border-right-color: var(--c1);
  filter: drop-shadow(0 0 4px var(--c1)) drop-shadow(0 0 12px var(--c1)) drop-shadow(0 0 24px var(--c2));
  animation: ul-spin calc(1s / var(--k)) cubic-bezier(.65,0,.35,1) infinite;
}

@keyframes ul-spin {
  to {
    transform: rotate(360deg);
  }
}
```

### React

```tsx
import type { CSSProperties } from "react";

const css = `
.ul-neon {
  width: var(--s);
  height: var(--s);
  border-radius: 50%;
  border: calc(var(--s) / 16) solid transparent;
  border-top-color: var(--c1);
  border-right-color: var(--c1);
  filter: drop-shadow(0 0 4px var(--c1)) drop-shadow(0 0 12px var(--c1)) drop-shadow(0 0 24px var(--c2));
  animation: ul-spin calc(1s / var(--k)) cubic-bezier(.65,0,.35,1) infinite;
}

@keyframes ul-spin {
  to {
    transform: rotate(360deg);
  }
}
`;

export default function LoaderNeonRing() {
  return (
    <>
      <style>{css}</style>
      <div
        style={{
          "--c1": "#0071e3",
          "--c2": "#8ec5ff",
          "--s": "72px",
          "--k": "1",
          "--bg": "#f5f5f7",
        } as CSSProperties}
      >
        <div className="ul-neon"></div>
      </div>
    </>
  );
}
```

## 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 “Neon ring loader” block (Loaders) from AIMRAN Library to my project.

## What it is
A glowing ring with a bright half-arc spinning around, surrounded by a soft neon halo.

## Chosen settings
- Main color: #0071e3
- Secondary color: #8ec5ff
- Size: 72px (from 24 to 120px)
- Speed: 1x (from 0.5 to 2x)

## 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
import type { CSSProperties } from "react";

const css = `
.ul-neon {
  width: var(--s);
  height: var(--s);
  border-radius: 50%;
  border: calc(var(--s) / 16) solid transparent;
  border-top-color: var(--c1);
  border-right-color: var(--c1);
  filter: drop-shadow(0 0 4px var(--c1)) drop-shadow(0 0 12px var(--c1)) drop-shadow(0 0 24px var(--c2));
  animation: ul-spin calc(1s / var(--k)) cubic-bezier(.65,0,.35,1) infinite;
}

@keyframes ul-spin {
  to {
    transform: rotate(360deg);
  }
}
`;

export default function LoaderNeonRing() {
  return (
    <>
      <style>{css}</style>
      <div
        style={{
          "--c1": "#0071e3",
          "--c2": "#8ec5ff",
          "--s": "72px",
          "--k": "1",
          "--bg": "#f5f5f7",
        } as CSSProperties}
      >
        <div className="ul-neon"></div>
      </div>
    </>
  );
}
```

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