CSS Box Shadow Generator
Layer multiple box shadows to craft soft elevation, tactile neumorphism, and vibrant ambient glows. Tweak parameters with live visual rendering.
-webkit-box-shadow: 0px 10px 15px -3px rgba(0, 0, 0, 0.10), 0px 4px 6px -2px rgba(0, 0, 0, 0.05);
box-shadow: 0px 10px 15px -3px rgba(0, 0, 0, 0.10), 0px 4px 6px -2px rgba(0, 0, 0, 0.05);Mastering Realistic CSS Elevation
The Multi-Layer Elevation Technique
In real physics, light bounces off multiple surfaces, producing both a tight, high-contrast contact shadow and a soft, diffused ambient penumbra.
Single-layer CSS shadows often appear muddy or artificial. Modern design systems (such as Tailwind CSS and Material Design) stack 2 to 4 comma-separated shadows—one with small blur and tight offset for contact, and another with large blur and negative spread for atmospheric ambient lighting.
Negative Spread & Inset Shadows
The fourth length parameter in CSS box-shadow is spread radius. Setting spread to a negative value shrinks the shadow perimeter, preventing shadow bleed on adjacent card edges while maintaining a lush blur.
The inset keyword inverts the shadow direction so that shadows render along the inside of the frame, creating debossed inputs, sunken cards, or active button press states.