# Tag cloud filter

> Tags in different sizes that grow on hover and switch on with a small pop when clicked.

- Category: [Filters](https://library.aimran.es/components/filters)
- Built with: HTML + CSS
- Live editor: https://library.aimran.es/blocks/uv-f-desk-tagcloud
- Library: AIMRAN Library (https://library.aimran.es), free, no sign-up, by Aimran Oukham

## Where to use it

A tag cloud gives a blog archive some personality. On a design blog, bigger words like “typography” or “CSS” show what the site writes about most, and clicking a few narrows the posts. It also suits a personal notes site or a recipe collection. If you're after a clickable tag cloud or topic filter in CSS, this does the job.

Size should reflect something real, like the number of posts per tag. Keep it to fifteen or twenty tags; a cloud of eighty is just noise. On phones the size differences shrink, so check that small tags are still easy to tap.

## Code

### HTML

```html
<div class="uv-ftc"><button style="--z:1.5">design</button><button style="--z:1.15">react</button><button style="--z:1">typography</button><button style="--z:1.35">css</button><button style="--z:1.2">animation</button><button style="--z:0.95">ui</button><button style="--z:1.1">3d</button><button style="--z:1.25">color</button><button style="--z:0.9">iconos</button><button style="--z:1.05">oscuro</button><button style="--z:1">grid</button><button style="--z:1.3">glass</button></div>
```

### CSS

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

.uv-ftc {
  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;
  flex-wrap: wrap;
  gap: .45em;
  justify-content: center;
  max-width: 22em;
}

.uv-ftc button {
  font-family: -apple-system,BlinkMacSystemFont,"SF Pro Text","Inter",system-ui,sans-serif;
  font-size: var(--s);
  font-weight: 550;
  line-height: 1;
  padding: .72em 1.25em;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  background: transparent;
  color: var(--fg);
  position: relative;
  transition: color calc(0.32s / var(--k)) cubic-bezier(.25,.1,.25,1),background calc(0.32s / var(--k)) cubic-bezier(.25,.1,.25,1),transform calc(0.32s / var(--k)) cubic-bezier(.34,1.56,.64,1);
  font-size: calc(var(--s) * var(--z) * .85);
  padding: .5em 1em;
  background: color-mix(in srgb,var(--fg) 6%,transparent);
  color: color-mix(in srgb,var(--fg) 72%,transparent);
}

.uv-ftc button:hover {
  transform: scale(1.12);
  color: var(--c1);
  background: color-mix(in srgb,var(--c1) 11%,transparent);
}

.uv-ftc button.on {
  color: #fff;
  background: var(--c1);
  box-shadow: 0 7px 18px color-mix(in srgb,var(--c1) 30%,transparent);
  animation: uv-ftc calc(0.45s / var(--k)) cubic-bezier(.34,1.56,.64,1);
}

@keyframes uv-ftc {
  0% {
    scale: 1;
  }
  40% {
    scale: 1.18;
  }
  100% {
    scale: 1;
  }
}
```

### JavaScript

```js
document.querySelectorAll(".uv-ftc").forEach(el => {
  el.querySelectorAll("button").forEach(b=>b.addEventListener("click",()=>b.classList.toggle("on")))
});
```

### React

```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 = `
.uv-ftc {
  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;
  flex-wrap: wrap;
  gap: .45em;
  justify-content: center;
  max-width: 22em;
}

.uv-ftc button {
  font-family: -apple-system,BlinkMacSystemFont,"SF Pro Text","Inter",system-ui,sans-serif;
  font-size: var(--s);
  font-weight: 550;
  line-height: 1;
  padding: .72em 1.25em;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  background: transparent;
  color: var(--fg);
  position: relative;
  transition: color calc(0.32s / var(--k)) cubic-bezier(.25,.1,.25,1),background calc(0.32s / var(--k)) cubic-bezier(.25,.1,.25,1),transform calc(0.32s / var(--k)) cubic-bezier(.34,1.56,.64,1);
  font-size: calc(var(--s) * var(--z) * .85);
  padding: .5em 1em;
  background: color-mix(in srgb,var(--fg) 6%,transparent);
  color: color-mix(in srgb,var(--fg) 72%,transparent);
}

.uv-ftc button:hover {
  transform: scale(1.12);
  color: var(--c1);
  background: color-mix(in srgb,var(--c1) 11%,transparent);
}

.uv-ftc button.on {
  color: #fff;
  background: var(--c1);
  box-shadow: 0 7px 18px color-mix(in srgb,var(--c1) 30%,transparent);
  animation: uv-ftc calc(0.45s / var(--k)) cubic-bezier(.34,1.56,.64,1);
}

@keyframes uv-ftc {
  0% {
    scale: 1;
  }
  40% {
    scale: 1.18;
  }
  100% {
    scale: 1;
  }
}
`;

// 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) {
  el.querySelectorAll("button").forEach(b=>b.addEventListener("click",()=>b.classList.toggle("on")))
}

export default function FDeskTagcloud() {
  const ref = useRef<HTMLDivElement>(null);

  useEffect(() => {
    const el = ref.current?.firstElementChild;
    return el ? setup(el) : undefined;
  }, []);

  return (
    <>
      <style>{css}</style>
      <div
        ref={ref} style={{
          "--c1": "#0071e3",
          "--c2": "#8ec5ff",
          "--s": "16px",
          "--k": "1",
          "--fg": "#1d1d1f",
          "--bg": "#f5f5f7",
        } as CSSProperties}
      >
        <div className="uv-ftc"><button style={{ "--z": "1.5" } as CSSProperties}>design</button><button style={{ "--z": "1.15" } as CSSProperties}>react</button><button style={{ "--z": "1" } as CSSProperties}>typography</button><button style={{ "--z": "1.35" } as CSSProperties}>css</button><button style={{ "--z": "1.2" } as CSSProperties}>animation</button><button style={{ "--z": "0.95" } as CSSProperties}>ui</button><button style={{ "--z": "1.1" } as CSSProperties}>3d</button><button style={{ "--z": "1.25" } as CSSProperties}>color</button><button style={{ "--z": "0.9" } as CSSProperties}>iconos</button><button style={{ "--z": "1.05" } as CSSProperties}>oscuro</button><button style={{ "--z": "1" } as CSSProperties}>grid</button><button style={{ "--z": "1.3" } as CSSProperties}>glass</button></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 “Tag cloud filter” block (Filters) from AIMRAN Library to my project.

## What it is
Tags in different sizes that grow on hover and switch on with a small pop when clicked.

## Chosen settings
- Main color: #0071e3
- Secondary color: #8ec5ff
- Size: 16px (from 12 to 24px)
- 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
// @ts-nocheck: setup() es JavaScript del DOM sin tipos, el mismo de la pestaña JS.
import { useEffect, useRef, type CSSProperties } from "react";

const css = `
.uv-ftc {
  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;
  flex-wrap: wrap;
  gap: .45em;
  justify-content: center;
  max-width: 22em;
}

.uv-ftc button {
  font-family: -apple-system,BlinkMacSystemFont,"SF Pro Text","Inter",system-ui,sans-serif;
  font-size: var(--s);
  font-weight: 550;
  line-height: 1;
  padding: .72em 1.25em;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  background: transparent;
  color: var(--fg);
  position: relative;
  transition: color calc(0.32s / var(--k)) cubic-bezier(.25,.1,.25,1),background calc(0.32s / var(--k)) cubic-bezier(.25,.1,.25,1),transform calc(0.32s / var(--k)) cubic-bezier(.34,1.56,.64,1);
  font-size: calc(var(--s) * var(--z) * .85);
  padding: .5em 1em;
  background: color-mix(in srgb,var(--fg) 6%,transparent);
  color: color-mix(in srgb,var(--fg) 72%,transparent);
}

.uv-ftc button:hover {
  transform: scale(1.12);
  color: var(--c1);
  background: color-mix(in srgb,var(--c1) 11%,transparent);
}

.uv-ftc button.on {
  color: #fff;
  background: var(--c1);
  box-shadow: 0 7px 18px color-mix(in srgb,var(--c1) 30%,transparent);
  animation: uv-ftc calc(0.45s / var(--k)) cubic-bezier(.34,1.56,.64,1);
}

@keyframes uv-ftc {
  0% {
    scale: 1;
  }
  40% {
    scale: 1.18;
  }
  100% {
    scale: 1;
  }
}
`;

// 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) {
  el.querySelectorAll("button").forEach(b=>b.addEventListener("click",()=>b.classList.toggle("on")))
}

export default function FDeskTagcloud() {
  const ref = useRef<HTMLDivElement>(null);

  useEffect(() => {
    const el = ref.current?.firstElementChild;
    return el ? setup(el) : undefined;
  }, []);

  return (
    <>
      <style>{css}</style>
      <div
        ref={ref} style={{
          "--c1": "#0071e3",
          "--c2": "#8ec5ff",
          "--s": "16px",
          "--k": "1",
          "--fg": "#1d1d1f",
          "--bg": "#f5f5f7",
        } as CSSProperties}
      >
        <div className="uv-ftc"><button style={{ "--z": "1.5" } as CSSProperties}>design</button><button style={{ "--z": "1.15" } as CSSProperties}>react</button><button style={{ "--z": "1" } as CSSProperties}>typography</button><button style={{ "--z": "1.35" } as CSSProperties}>css</button><button style={{ "--z": "1.2" } as CSSProperties}>animation</button><button style={{ "--z": "0.95" } as CSSProperties}>ui</button><button style={{ "--z": "1.1" } as CSSProperties}>3d</button><button style={{ "--z": "1.25" } as CSSProperties}>color</button><button style={{ "--z": "0.9" } as CSSProperties}>iconos</button><button style={{ "--z": "1.05" } as CSSProperties}>oscuro</button><button style={{ "--z": "1" } as CSSProperties}>grid</button><button style={{ "--z": "1.3" } as CSSProperties}>glass</button></div>
      </div>
    </>
  );
}
```

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