CSS Box Shadow Generator
Design realistic, modern CSS box shadows visually with real-time card preview and clean CSS export.
How to Use CSS Box Shadow Generator
- Adjust the horizontal (X) and vertical (Y) offset sliders to position your shadow.
- Adjust the Blur Radius and Spread Radius sliders to achieve soft or crisp elevation.
- Select shadow color, adjust opacity percentage, and toggle the Inset checkbox if needed.
- Click 'Copy CSS' to copy the box-shadow declaration to your clipboard.
Technical Specifications & How It Works
Well-crafted box shadows add depth, visual hierarchy, and elevation to web UI components like cards, modals, and buttons.
This generator translates visual slider inputs into standard CSS box-shadow declarations using rgba color opacity for realistic light blending.
CSS properties are computed live in client memory and applied instantly to the preview element.
Frequently Asked Questions
What does spread radius do in a box shadow?
Spread radius expands or shrinks the shadow shape beyond the dimensions of the box before blur is applied, allowing for tight, focused drop shadows.
What is an inset shadow?
An inset shadow is rendered inside the perimeter of the box rather than outside, creating an embossed or sunken effect.
How does shadow opacity affect realism?
Subtle shadows with high blur (20-30px) and low opacity (10-15%) create realistic, modern elevation without harsh dark borders.