# Rotating gradient border

> A two-color gradient runs around the button's border non-stop, even when nobody is hovering it.

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

## Where to use it

A button with an animated gradient border draws the eye without anyone touching it, which makes it a good fit for launch moments: “Join the waitlist” on a pre-launch page, “Get tickets” for a conference or “Try the beta” in a changelog. The inside stays the color of your page, so only the outline moves.

Because it never stops, keep it to one element and slow it down if it sits near text people need to read. Pick two colors that are close in hue for something calm, or opposite ones if the page is dark and you want more punch.

## Code

### HTML

```html
<button class="uv-conic"><span>Discover</span></button>
```

### CSS

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

@property --uv-a {
  syntax: "<angle>";
  inherits: false;
  initial-value: 0deg;
}

.uv-conic {
  font-family: -apple-system,BlinkMacSystemFont,"SF Pro Text","Inter",system-ui,sans-serif;
  font-size: var(--s);
  font-weight: 600;
  line-height: 1;
  padding: 1em 2em;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  padding: 2px;
  background: conic-gradient(from var(--uv-a),var(--c1),var(--c2),transparent 60%,var(--c1));
  animation: uv-a calc(3s / var(--k)) linear infinite;
  transition: transform .3s cubic-bezier(.25,.1,.25,1);
}

.uv-conic span {
  display: block;
  padding: calc(1em - 2px) calc(2em - 2px);
  border-radius: 999px;
  background: var(--bg);
  color: var(--fg);
}

.uv-conic:hover {
  transform: scale(1.04);
}

.uv-conic:active {
  transform: scale(.97);
}

@keyframes uv-a {
  to {
    --uv-a: 360deg;
  }
}
```

### React

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

const css = `
@property --uv-a {
  syntax: "<angle>";
  inherits: false;
  initial-value: 0deg;
}

.uv-conic {
  font-family: -apple-system,BlinkMacSystemFont,"SF Pro Text","Inter",system-ui,sans-serif;
  font-size: var(--s);
  font-weight: 600;
  line-height: 1;
  padding: 1em 2em;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  padding: 2px;
  background: conic-gradient(from var(--uv-a),var(--c1),var(--c2),transparent 60%,var(--c1));
  animation: uv-a calc(3s / var(--k)) linear infinite;
  transition: transform .3s cubic-bezier(.25,.1,.25,1);
}

.uv-conic span {
  display: block;
  padding: calc(1em - 2px) calc(2em - 2px);
  border-radius: 999px;
  background: var(--bg);
  color: var(--fg);
}

.uv-conic:hover {
  transform: scale(1.04);
}

.uv-conic:active {
  transform: scale(.97);
}

@keyframes uv-a {
  to {
    --uv-a: 360deg;
  }
}
`;

export default function BtnConic() {
  return (
    <>
      <style>{css}</style>
      <div
        style={{
          "--c1": "#0071e3",
          "--c2": "#8ec5ff",
          "--s": "16px",
          "--k": "1",
          "--fg": "#1d1d1f",
          "--bg": "#f5f5f7",
        } as CSSProperties}
      >
        <button className="uv-conic"><span>Discover</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 “Rotating gradient border” block (Buttons) from AIMRAN Library to my project.

## What it is
A two-color gradient runs around the button's border non-stop, even when nobody is hovering it.

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

## 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 = `
@property --uv-a {
  syntax: "<angle>";
  inherits: false;
  initial-value: 0deg;
}

.uv-conic {
  font-family: -apple-system,BlinkMacSystemFont,"SF Pro Text","Inter",system-ui,sans-serif;
  font-size: var(--s);
  font-weight: 600;
  line-height: 1;
  padding: 1em 2em;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  padding: 2px;
  background: conic-gradient(from var(--uv-a),var(--c1),var(--c2),transparent 60%,var(--c1));
  animation: uv-a calc(3s / var(--k)) linear infinite;
  transition: transform .3s cubic-bezier(.25,.1,.25,1);
}

.uv-conic span {
  display: block;
  padding: calc(1em - 2px) calc(2em - 2px);
  border-radius: 999px;
  background: var(--bg);
  color: var(--fg);
}

.uv-conic:hover {
  transform: scale(1.04);
}

.uv-conic:active {
  transform: scale(.97);
}

@keyframes uv-a {
  to {
    --uv-a: 360deg;
  }
}
`;

export default function BtnConic() {
  return (
    <>
      <style>{css}</style>
      <div
        style={{
          "--c1": "#0071e3",
          "--c2": "#8ec5ff",
          "--s": "16px",
          "--k": "1",
          "--fg": "#1d1d1f",
          "--bg": "#f5f5f7",
        } as CSSProperties}
      >
        <button className="uv-conic"><span>Discover</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.
````