What does the slash '/' in border-radius mean?
The slash separates horizontal corner radii (before the slash) from vertical corner radii (after the slash).
Interactive 8-point CSS border-radius tool to create organic morphing blob shapes.
Processing Architecture: Client-Side (Processed locally in your web browser with zero server uploads)
Move the 8 corner handles to shape each individual radius quadrant.
Watch the container morph into custom organic curves.
Copy the `border-radius: X% X% X% X% / Y% Y% Y% Y%` syntax.
The slash separates horizontal corner radii (before the slash) from vertical corner radii (after the slash).
Yes, the 8-value border-radius syntax is part of CSS3 and supported by 100% of modern web browsers.