What Is a Box Shadow Generator?
A CSS box shadow generator helps you create visual depth effects for HTML elements. It allows you to configure horizontal and vertical offsets, blur radius, spread radius, and color, then generates the CSS box-shadow property code.
How to Use This Box Shadow Generator
- Enter values for X offset, Y offset, blur, spread (in pixels), and shadow color (e.g., rgba(0,0,0,0.3)). The CSS code updates automatically as you type.
- Click “Generate” to load a random shadow preset for quick experimentation.
- Copy the generated CSS box-shadow property to use in your stylesheet.
Key Concepts
The CSS box-shadow syntax is: box-shadow: [inset] offset-x offset-y blur-radius spread-radius color. Positive X moves right, positive Y moves down. Blur radius creates softness; spread radius expands or contracts the shadow. Multiple shadows can be layered (comma-separated) for realistic depth. The inset keyword creates inner shadows.
Frequently Asked Questions
How do I create a realistic shadow?
Use subtle offsets (2-8px), moderate blur (10-30px), negative spread for tighter shadows, and semi-transparent black (rgba(0,0,0,0.1-0.3)). Layer multiple shadows at different offsets for depth.
Can I add multiple shadows to one element?
Yes. Separate multiple shadow values with commas. The first shadow in the list appears on top. This technique creates layered, realistic shadow effects.
Does box-shadow affect layout?
No. Box shadows are purely visual and do not affect the element’s box model or layout. They can overflow into adjacent elements, so use overflow or margin adjustments if needed.