SEO Tool

CSS Box Shadow Generator

Design professional, smooth, multi-layered CSS box shadows visually. Adjust offsets, blur, spread, colors, and opacity, then copy the CSS with one click.

Preview
Box Color
Background
Radius 16px
CSS Output
box-shadow: 0px 10px 15px -3px rgba(0, 0, 0, 0.10),
0px 4px 6px -2px rgba(0, 0, 0, 0.05);

Shadow Layers

Layer 1
0x 10y 15b -3s
Options
#000000
Layer 2
0x 4y 6b -2s
Options
#000000

The secret to beautiful, natural-looking shadows

In modern web design, dropping a single box-shadow onto an element is no longer enough to achieve a premium, realistic look. Real-world shadows don't just fall uniformly; they dissipate, soften at the edges, and become lighter the further they stray from the object casting them.

Multi-layered Shadows

The best technique for stunning shadows in CSS is called shadow layering. By overlapping multiple shadows together, you can create a composite shadow that is tight and intense near the object, but drastically blurred and washed out near the far edge. Our tool is specifically designed around layering to guarantee elite visual results.

Understanding Spread vs Blur

A common mistake is treating Blur and Spread equally. Blur controls the feathering on the edges of the shadow. Spread controls the physical expansion (or contraction, if negative) of the shadow's mask overall. To create an "elevation" effect without a bulky halo, front-end developers often use a negative spread coupled with a high blur.

Frequently Asked Questions

How do you make smooth CSS shadows?

Smooth CSS shadows are created by layering multiple `box-shadow` declarations together. Instead of one harsh shadow, you combine several shadows with varying opacities, blurs, and offsets to mimic real physical light dissipation.

Can I copy the shadow CSS to Tailwind?

Yes! You can take our generated CSS shadow string and inject it into your tailwind.config.js file to define custom shadow utility classes. Alternatively, you can use JIT arbitrary notation like shadow-[0px_10px_...] directly in your HTML.