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How to Use the CSS Box Shadow Generator
Use the visual controls to adjust your box shadow properties — horizontal offset, vertical offset, blur radius, spread radius, and color. The live preview updates instantly so you can see exactly how the shadow looks.
You can add multiple shadow layers to create complex, realistic depth effects. Each layer has independent controls, and the combined result appears in the preview pane. Drag the sliders or type exact pixel values for precision.
When you are satisfied with the result, copy the generated CSS code and paste it directly into your stylesheet. The tool outputs clean, cross-browser-compatible CSS.
Why Use This Tool
Writing CSS box shadows by hand means guessing pixel values, refreshing the page, and adjusting over and over. This visual generator lets you design shadows interactively, saving significant time during front-end development.
It is especially useful for designers who need to communicate shadow specifications to developers, or for developers prototyping UI components. The generated CSS is production-ready and works in all modern browsers.
Key Features
- Interactive sliders for offset, blur, spread, and opacity
- Support for multiple shadow layers with independent controls
- Inset shadow option for inner shadow effects
- Live preview with customizable background and element colors
- One-click CSS code copy ready for production use
- Color picker with full RGBA and HEX support
Frequently Asked Questions
What is a CSS box shadow?
A CSS box shadow adds a shadow effect around an HTML element's frame. It is commonly used to create depth, elevate cards or buttons, and add visual hierarchy to web page layouts. The CSS property is 'box-shadow' and accepts values for horizontal offset, vertical offset, blur, spread, and color.
Can I use multiple shadows on one element?
Yes. CSS supports comma-separated multiple shadow values on a single element. This tool lets you add and configure multiple layers, which creates more realistic and nuanced shadow effects.
Do box shadows affect page performance?
Box shadows have minimal performance impact on modern browsers. However, very large blur values or many shadow layers on frequently animated elements can cause rendering slowdowns. For most designs, box shadows are perfectly performant.
What is the difference between box-shadow and drop-shadow?
box-shadow applies to the rectangular box model of an element, while the CSS filter drop-shadow() follows the actual shape of the element, including transparent areas in images. Use box-shadow for standard rectangular elements and drop-shadow for irregular shapes.