Box Shadow Generator
Generate CSS box shadows
Parameters
Preview
CSS Code
Frequently Asked Questions
How does CSS box-shadow work?
Box-shadow syntax: box-shadow: offset-x offset-y blur spread color. Example: box-shadow: 5px 5px 10px 0px rgba(0,0,0,0.3) creates a shadow 5px right and down with 10px blur. The generator provides visual controls for each parameter.
How do I create a realistic shadow effect?
Use multiple layered shadows with decreasing opacity. Example: box-shadow: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24). This mimics Material Design elevation and looks more natural than a single shadow.
What is an inset shadow?
Adding the inset keyword creates an inner shadow: box-shadow: inset 0 2px 4px rgba(0,0,0,0.2). This creates a pressed or recessed effect, commonly used for input fields and buttons in their active state.
Can I add multiple shadows to one element?
Yes. Separate multiple shadows with commas: box-shadow: 0 2px 4px rgba(0,0,0,0.1), 0 8px 16px rgba(0,0,0,0.1). Layered shadows create more realistic depth. The generator supports adding unlimited shadow layers.
Does box-shadow affect layout or performance?
Box-shadow does not affect element size or layout — it is purely visual. For performance, complex shadows with large blur values can be expensive to render. Use will-change: box-shadow for animated shadows to enable GPU acceleration.