# Pulse and ripple loader

> A small core that breathes in and out while sending soft rings outward, like a signal going out.

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

## Where to use it

Rings spreading from a center read as “searching nearby” or “sending a signal”. Use this ripple loader when a ride app looks for a driver, when an app pairs a speaker over Bluetooth or when a delivery map is locating the courier. The core breathes gently in step, so the whole thing feels alive rather than mechanical.

At small sizes it doubles as a live status dot, next to “Live” on a streaming page or on a courier’s position on a map. Leave generous space around it; the rings grow to about three times the core.

## Code

### HTML

```html
<div class="ul-rip"><i></i><i></i></div>
```

### CSS

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

.ul-rip {
  position: relative;
  width: calc(var(--s) / 2.2);
  height: calc(var(--s) / 2.2);
  border-radius: 50%;
  background: var(--c1);
  animation: ul-br calc(2s / var(--k)) ease-in-out infinite;
}

.ul-rip i {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid var(--c1);
  animation: ul-rip calc(2s / var(--k)) cubic-bezier(.2,.6,.4,1) infinite;
}

.ul-rip i:nth-child(2) {
  animation-delay: calc(-1s / var(--k));
}

@keyframes ul-br {
  0%,100% {
    transform: scale(.85);
  }
  50% {
    transform: scale(1);
  }
}

@keyframes ul-rip {
  0% {
    transform: scale(1);
    opacity: .7;
  }
  100% {
    transform: scale(3.2);
    opacity: 0;
  }
}
```

### React

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

const css = `
.ul-rip {
  position: relative;
  width: calc(var(--s) / 2.2);
  height: calc(var(--s) / 2.2);
  border-radius: 50%;
  background: var(--c1);
  animation: ul-br calc(2s / var(--k)) ease-in-out infinite;
}

.ul-rip i {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid var(--c1);
  animation: ul-rip calc(2s / var(--k)) cubic-bezier(.2,.6,.4,1) infinite;
}

.ul-rip i:nth-child(2) {
  animation-delay: calc(-1s / var(--k));
}

@keyframes ul-br {
  0%,100% {
    transform: scale(.85);
  }
  50% {
    transform: scale(1);
  }
}

@keyframes ul-rip {
  0% {
    transform: scale(1);
    opacity: .7;
  }
  100% {
    transform: scale(3.2);
    opacity: 0;
  }
}
`;

export default function LoaderRipple() {
  return (
    <>
      <style>{css}</style>
      <div
        style={{
          "--c1": "#0071e3",
          "--c2": "#8ec5ff",
          "--s": "72px",
          "--k": "1",
          "--bg": "#f5f5f7",
        } as CSSProperties}
      >
        <div className="ul-rip"><i></i><i></i></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 “Pulse and ripple loader” block (Loaders) from AIMRAN Library to my project.

## What it is
A small core that breathes in and out while sending soft rings outward, like a signal going out.

## 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-rip {
  position: relative;
  width: calc(var(--s) / 2.2);
  height: calc(var(--s) / 2.2);
  border-radius: 50%;
  background: var(--c1);
  animation: ul-br calc(2s / var(--k)) ease-in-out infinite;
}

.ul-rip i {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid var(--c1);
  animation: ul-rip calc(2s / var(--k)) cubic-bezier(.2,.6,.4,1) infinite;
}

.ul-rip i:nth-child(2) {
  animation-delay: calc(-1s / var(--k));
}

@keyframes ul-br {
  0%,100% {
    transform: scale(.85);
  }
  50% {
    transform: scale(1);
  }
}

@keyframes ul-rip {
  0% {
    transform: scale(1);
    opacity: .7;
  }
  100% {
    transform: scale(3.2);
    opacity: 0;
  }
}
`;

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

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