CSS Box Shadow Generator
LiveDesign CSS box shadows visually with real-time preview and code output.
box-shadow: 5px 5px 15px 0px rgba(0, 0, 0, 0.30);Understanding CSS Box Shadows
CSS box-shadow adds depth, elevation, and visual hierarchy to UI elements by rendering shadow effects around element boundaries. Material Design popularized elevation-based shadow systems where shadow intensity communicates component layering — cards float above the background, modals float above cards, and tooltips float above modals. The box-shadow property accepts horizontal offset, vertical offset, blur radius, spread radius, and color — and supports multiple comma-separated shadows for layered effects. Inset shadows create inner shadow effects for pressed buttons and recessed panels.
Create custom CSS box shadows with a visual editor. Adjust horizontal offset, vertical offset, blur radius, spread radius, color, and opacity. Support for multiple shadow layers and inset shadows. Copy the generated CSS code.
The Devkitr Box Shadow Generator provides visual controls for designing CSS box-shadow effects. Adjust offset, blur, spread, color, and opacity with sliders — see the shadow render in real time on a preview element. Stack multiple shadows for realistic depth effects and copy the generated CSS.
In a typical development workflow, CSS Box Shadow Generator becomes valuable whenever you need to design css box shadows visually with real-time preview and code output. Whether you are working on a personal side project, maintaining production applications for a company, or collaborating with a distributed team across time zones, having a reliable browser-based generation tool eliminates the need to install desktop software, write one-off scripts, or send data to third-party services that may log or retain your information. Since CSS Box Shadow Generator processes everything locally on your device, your data stays private and your workflow stays uninterrupted — open a browser tab, paste your input, get your result.
Key Features
Interactive Controls
Adjust horizontal offset, vertical offset, blur radius, spread radius, and shadow color using sliders with real-time preview — no CSS syntax memorization required.
Multi-Shadow Layering
Stack multiple shadow layers for realistic depth effects — subtle close shadows combined with diffuse far shadows create natural-looking elevation.
Inset Shadow Support
Toggle inset mode to create inner shadows for pressed button states, recessed panels, and neumorphic design effects.
Shadow Presets
Quick-select common shadow styles — subtle card elevation, medium button shadows, heavy modal overlays, Material Design elevation levels.
How to Use CSS Box Shadow Generator
Adjust Shadow Parameters
Use the sliders to set horizontal offset, vertical offset, blur radius, and spread radius. Start with subtle values and increase gradually.
Set Shadow Color
Choose a shadow color — typically a semi-transparent black (rgba(0,0,0,0.1-0.3)). For colored shadows, use a darker shade of the element's background color.
Add More Layers
Click add layer to stack additional shadows. Realistic shadows typically use 2-3 layers: a tight dark shadow plus a diffuse lighter shadow.
Copy the CSS
Copy the generated box-shadow CSS property value for your stylesheet.
Use Cases
Card Component Elevation
Create subtle elevation shadows for cards, panels, and content containers that establish visual hierarchy and depth in flat design systems.
Interactive Hover Effects
Design shadow transitions for hover states — cards that "lift" on hover by increasing shadow offset and blur create engaging interactive feedback.
Modal and Overlay Depth
Create dramatic drop shadows for modals, popovers, and floating panels to visually separate them from the underlying page content.
Neumorphic Design
Combine outset and inset shadows to create the soft, extruded look of neumorphic UI design with realistic light and shadow interplay.
Pro Tips
For natural-looking shadows, use at least two layers — a small dark shadow (0 1px 3px rgba(0,0,0,0.12)) plus a broader light shadow (0 1px 2px rgba(0,0,0,0.24)).
Shadow color should never be pure black (rgb(0,0,0)). Use dark gray or a darkened version of the background color for more natural shadows.
Use CSS transitions on box-shadow for smooth hover effects: transition: box-shadow 0.3s ease. But note that shadow transitions can cause performance issues on low-end devices.
For elevation systems, define shadow variables for each level (--shadow-sm, --shadow-md, --shadow-lg) and apply them consistently across components.
Common Pitfalls
Using identical shadows on every element regardless of size
Fix: Larger elements need larger, more diffuse shadows. Smaller elements need tighter, subtler shadows. Scale shadow values proportionally to element size.
Animating box-shadow directly for performance-sensitive interactions
Fix: Box-shadow animations trigger repaints. For smooth animations, use transform: scale() or opacity changes on a pseudo-element shadow instead.
Applying pure black shadows that look unnatural
Fix: Use rgba(0,0,0,0.1-0.3) or a desaturated color that matches your design palette. Real-world shadows are never pure black.
Frequently Asked Questions
QCan I add multiple shadow layers?
Yes. You can stack multiple box-shadow layers to create complex depth and lighting effects.
QWhat is an inset shadow?
An inset shadow appears inside the element rather than outside, creating a pressed-in or recessed visual effect.
QWhich properties can I adjust?
Horizontal offset, vertical offset, blur radius, spread radius, color, and opacity for each shadow layer.
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