Design & Media Hub • 100% Client-Side Free Utility

CSS Box Shadow Generator

How this tool helps

ToolVyne CSS Box Shadow Generator is an interactive visual design tool that produces clean, modern UI shadows. It lets designers adjust horizontal/vertical offsets, blur radius, spread radius, color opacity, and inset modes with instant CSS code generation.

Presets:
Horizontal Offset (X)0px
Vertical Offset (Y)12px
Blur Radius24px
Spread Radius-4px
Opacity18%
Interactive SurfaceElevation Render
box-shadow: 0px 12px 24px -4px rgba(15, 23, 42, 0.18);

Algorithmic Formulas & Methodology

box-shadow: [inset] <offset-x> <offset-y> <blur-radius> <spread-radius> <color>;

How to use this tool

Principles of Modern UI Elevation and Depth

Effective elevation design uses subtle, low-opacity shadows with generous blur radii to simulate natural ambient light sources. Hard, dark shadows create visual clutter, whereas multi-layered soft shadows convey spatial hierarchy.

Frequently Asked Questions

A negative spread radius shrinks the shadow size relative to the element box, creating floating, elevated ambient lighting effects.

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