# Shimmer tooltip

> The label rises into place while a streak of light sweeps across it once, like a quick shimmer.

- Category: [Tooltips](https://library.aimran.es/components/tooltips)
- Built with: HTML + CSS
- Live editor: https://library.aimran.es/blocks/uv-tip-wave
- Library: AIMRAN Library (https://library.aimran.es), free, no sign-up, by Aimran Oukham

## Where to use it

The passing streak of light hints that something is happening, which makes it a natural fit for sync and refresh actions. Think of the “Sync now” button in a fitness app that pulls workouts from a watch, or the backup icon of a photo storage service. A small shimmer tooltip, built in HTML and CSS.

The light takes its tone from your second color, so a soft tint works better than a neon one. The sweep plays once per hover, not in a loop. If the sync really takes a while, pair it with a progress indicator instead of relying on the shine.

## Code

### HTML

```html
<button class="uv-tw">Sync<span>Sync is on<i></i></span></button>
```

### CSS

```css
.uv-tw {
  --c1: #0071e3;
  --c2: #8ec5ff;
  --s: 16px;
  /* tamaño */
  --k: 1;
  /* velocidad */
  --fg: #1d1d1f;
  /* texto */
  --bg: #f5f5f7;
  /* fondo */
}

.uv-tw {
  font-family: -apple-system,BlinkMacSystemFont,"SF Pro Text","Inter",system-ui,sans-serif;
  font-size: var(--s);
  font-weight: 600;
  border: 0;
  cursor: pointer;
  color: var(--fg);
  background: color-mix(in srgb,var(--fg) 7%,transparent);
  position: relative;
  padding: .8em 1.25em;
  border-radius: 999px;
}

.uv-tw span {
  position: absolute;
  z-index: 5;
  padding: .65em .85em;
  border-radius: .75em;
  font-size: .76em;
  font-weight: 550;
  line-height: 1.25;
  white-space: nowrap;
  pointer-events: none;
  color: var(--bg);
  background: var(--fg);
  box-shadow: 0 12px 35px rgba(0,0,0,.2);
  opacity: 0;
  left: 50%;
  bottom: calc(100% + .75em);
  overflow: hidden;
  transform: translate(-50%,.5em);
  transition: all calc(0.35s / var(--k)) cubic-bezier(.25,.1,.25,1);
}

.uv-tw i {
  position: absolute;
  inset: -80% auto -80% -40%;
  width: 35%;
  background: linear-gradient(90deg,transparent,color-mix(in srgb,var(--c2) 65%,#fff),transparent);
  transform: skewX(-20deg);
}

.uv-tw:hover span,.uv-tw:focus-visible span {
  opacity: 1;
  transform: translate(-50%,0);
}

.uv-tw:hover i {
  animation: uv-tw-wave calc(1s / var(--k)) cubic-bezier(.25,.1,.25,1);
}

@keyframes uv-tw-wave {
  to {
    left: 120%;
  }
}
```

### React

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

const css = `
.uv-tw {
  font-family: -apple-system,BlinkMacSystemFont,"SF Pro Text","Inter",system-ui,sans-serif;
  font-size: var(--s);
  font-weight: 600;
  border: 0;
  cursor: pointer;
  color: var(--fg);
  background: color-mix(in srgb,var(--fg) 7%,transparent);
  position: relative;
  padding: .8em 1.25em;
  border-radius: 999px;
}

.uv-tw span {
  position: absolute;
  z-index: 5;
  padding: .65em .85em;
  border-radius: .75em;
  font-size: .76em;
  font-weight: 550;
  line-height: 1.25;
  white-space: nowrap;
  pointer-events: none;
  color: var(--bg);
  background: var(--fg);
  box-shadow: 0 12px 35px rgba(0,0,0,.2);
  opacity: 0;
  left: 50%;
  bottom: calc(100% + .75em);
  overflow: hidden;
  transform: translate(-50%,.5em);
  transition: all calc(0.35s / var(--k)) cubic-bezier(.25,.1,.25,1);
}

.uv-tw i {
  position: absolute;
  inset: -80% auto -80% -40%;
  width: 35%;
  background: linear-gradient(90deg,transparent,color-mix(in srgb,var(--c2) 65%,#fff),transparent);
  transform: skewX(-20deg);
}

.uv-tw:hover span,.uv-tw:focus-visible span {
  opacity: 1;
  transform: translate(-50%,0);
}

.uv-tw:hover i {
  animation: uv-tw-wave calc(1s / var(--k)) cubic-bezier(.25,.1,.25,1);
}

@keyframes uv-tw-wave {
  to {
    left: 120%;
  }
}
`;

export default function TipWave() {
  return (
    <>
      <style>{css}</style>
      <div
        style={{
          "--c1": "#0071e3",
          "--c2": "#8ec5ff",
          "--s": "16px",
          "--k": "1",
          "--fg": "#1d1d1f",
          "--bg": "#f5f5f7",
        } as CSSProperties}
      >
        <button className="uv-tw">Sync<span>Sync is on<i></i></span></button>
      </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 “Shimmer tooltip” block (Tooltips) from AIMRAN Library to my project.

## What it is
The label rises into place while a streak of light sweeps across it once, like a quick shimmer.

## Chosen settings
- Main color: #0071e3
- Secondary color: #8ec5ff
- Size: 16px (from 12 to 24px)
- Speed: 1x (from 0.5 to 2x)
- Text: "Sync is on"

## 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 = `
.uv-tw {
  font-family: -apple-system,BlinkMacSystemFont,"SF Pro Text","Inter",system-ui,sans-serif;
  font-size: var(--s);
  font-weight: 600;
  border: 0;
  cursor: pointer;
  color: var(--fg);
  background: color-mix(in srgb,var(--fg) 7%,transparent);
  position: relative;
  padding: .8em 1.25em;
  border-radius: 999px;
}

.uv-tw span {
  position: absolute;
  z-index: 5;
  padding: .65em .85em;
  border-radius: .75em;
  font-size: .76em;
  font-weight: 550;
  line-height: 1.25;
  white-space: nowrap;
  pointer-events: none;
  color: var(--bg);
  background: var(--fg);
  box-shadow: 0 12px 35px rgba(0,0,0,.2);
  opacity: 0;
  left: 50%;
  bottom: calc(100% + .75em);
  overflow: hidden;
  transform: translate(-50%,.5em);
  transition: all calc(0.35s / var(--k)) cubic-bezier(.25,.1,.25,1);
}

.uv-tw i {
  position: absolute;
  inset: -80% auto -80% -40%;
  width: 35%;
  background: linear-gradient(90deg,transparent,color-mix(in srgb,var(--c2) 65%,#fff),transparent);
  transform: skewX(-20deg);
}

.uv-tw:hover span,.uv-tw:focus-visible span {
  opacity: 1;
  transform: translate(-50%,0);
}

.uv-tw:hover i {
  animation: uv-tw-wave calc(1s / var(--k)) cubic-bezier(.25,.1,.25,1);
}

@keyframes uv-tw-wave {
  to {
    left: 120%;
  }
}
`;

export default function TipWave() {
  return (
    <>
      <style>{css}</style>
      <div
        style={{
          "--c1": "#0071e3",
          "--c2": "#8ec5ff",
          "--s": "16px",
          "--k": "1",
          "--fg": "#1d1d1f",
          "--bg": "#f5f5f7",
        } as CSSProperties}
      >
        <button className="uv-tw">Sync<span>Sync is on<i></i></span></button>
      </div>
    </>
  );
}
```

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