# Sliding tiles loader

> Three rounded tiles taking turns to slide around a square, like a little sliding puzzle.

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

## Where to use it

There is something satisfying about pieces shifting into place, which makes this loader a good match for tools built on grids and boards: a kanban app loading its columns, a photo gallery fetching thumbnails or a puzzle game between levels. It is plain HTML and CSS, three small blocks and a few lines of style.

Use the second color on the odd tile out so the eye can follow its path. The default pace feels thoughtful; speed it up too much and the tiles look like they are fighting over the empty spot.

## Code

### HTML

```html
<div class="ul-grid"><i style="--i:0"></i><i style="--i:1"></i><i style="--i:2"></i></div>
```

### CSS

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

.ul-grid {
  position: relative;
  width: var(--s);
  height: var(--s);
}

.ul-grid i {
  position: absolute;
  width: 44%;
  height: 44%;
  border-radius: 24%;
  background: var(--c1);
  animation: ul-grid calc(2.4s / var(--k)) cubic-bezier(.65,0,.35,1) infinite;
  animation-delay: calc(var(--i) * -0.6s / var(--k));
}

.ul-grid i:nth-child(2) {
  background: var(--c2);
}

@keyframes ul-grid {
  0%,18% {
    transform: translate(0,0);
  }
  25%,43% {
    transform: translate(127%,0);
  }
  50%,68% {
    transform: translate(127%,127%);
  }
  75%,93% {
    transform: translate(0,127%);
  }
  100% {
    transform: translate(0,0);
  }
}
```

### React

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

const css = `
.ul-grid {
  position: relative;
  width: var(--s);
  height: var(--s);
}

.ul-grid i {
  position: absolute;
  width: 44%;
  height: 44%;
  border-radius: 24%;
  background: var(--c1);
  animation: ul-grid calc(2.4s / var(--k)) cubic-bezier(.65,0,.35,1) infinite;
  animation-delay: calc(var(--i) * -0.6s / var(--k));
}

.ul-grid i:nth-child(2) {
  background: var(--c2);
}

@keyframes ul-grid {
  0%,18% {
    transform: translate(0,0);
  }
  25%,43% {
    transform: translate(127%,0);
  }
  50%,68% {
    transform: translate(127%,127%);
  }
  75%,93% {
    transform: translate(0,127%);
  }
  100% {
    transform: translate(0,0);
  }
}
`;

export default function LoaderSlideGrid() {
  return (
    <>
      <style>{css}</style>
      <div
        style={{
          "--c1": "#0071e3",
          "--c2": "#8ec5ff",
          "--s": "72px",
          "--k": "1",
          "--bg": "#f5f5f7",
        } as CSSProperties}
      >
        <div className="ul-grid"><i style={{ "--i": "0" } as CSSProperties}></i><i style={{ "--i": "1" } as CSSProperties}></i><i style={{ "--i": "2" } as CSSProperties}></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 “Sliding tiles loader” block (Loaders) from AIMRAN Library to my project.

## What it is
Three rounded tiles taking turns to slide around a square, like a little sliding puzzle.

## 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-grid {
  position: relative;
  width: var(--s);
  height: var(--s);
}

.ul-grid i {
  position: absolute;
  width: 44%;
  height: 44%;
  border-radius: 24%;
  background: var(--c1);
  animation: ul-grid calc(2.4s / var(--k)) cubic-bezier(.65,0,.35,1) infinite;
  animation-delay: calc(var(--i) * -0.6s / var(--k));
}

.ul-grid i:nth-child(2) {
  background: var(--c2);
}

@keyframes ul-grid {
  0%,18% {
    transform: translate(0,0);
  }
  25%,43% {
    transform: translate(127%,0);
  }
  50%,68% {
    transform: translate(127%,127%);
  }
  75%,93% {
    transform: translate(0,127%);
  }
  100% {
    transform: translate(0,0);
  }
}
`;

export default function LoaderSlideGrid() {
  return (
    <>
      <style>{css}</style>
      <div
        style={{
          "--c1": "#0071e3",
          "--c2": "#8ec5ff",
          "--s": "72px",
          "--k": "1",
          "--bg": "#f5f5f7",
        } as CSSProperties}
      >
        <div className="ul-grid"><i style={{ "--i": "0" } as CSSProperties}></i><i style={{ "--i": "1" } as CSSProperties}></i><i style={{ "--i": "2" } as CSSProperties}></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.
````