This visual CSS generator creates cross-browser border-radius styling rules using an interactive corner-by-corner slider interface. Frontend developers, UI designers, and web authors can sculpt asymmetrical button curvatures, card corner radii, and pill shapes with instant visual feedback and clean CSS code generation.

### Four-Corner Geometry and CSS Syntax The generator provides independent slider controls for all four box corners:

- **Independent Corner Sliders (0–100px):** - *Top Left:* Adjusts the upper-left radius curvature. - *Top Right:* Adjusts the upper-right radius curvature. - *Bottom Right:* Adjusts the lower-right radius curvature. - *Bottom Left:* Adjusts the lower-left radius curvature. - **Shorthand Output Rule:** Generates standard shorthand CSS syntax: `border-radius: [top-left]px [top-right]px [bottom-right]px [bottom-left]px;` - **Interactive Box Preview:** A centered $160 \times 160\text{ px}$ container updates its curvature in real time on every slider adjustment.

### Practical Styling Example Suppose a designer styles a card with organic asymmetrical rounding: - **Top Left:** 24px - **Top Right:** 8px - **Bottom Right:** 24px - **Bottom Left:** 8px

**Generated CSS Declaration:** ```css border-radius: 24px 8px 24px 8px; ```

Clicking the copy button instantly transfers the CSS declaration to your clipboard ready for Tailwind CSS, Vanilla CSS, or styled-components.

### Client-Side Execution Guarantee All shape rendering occurs natively inside your browser DOM using synchronized React state. No design parameters or styling rules are transmitted to an external server.