CSS Box Shadow & Border Generator

CSS Box Generator: Create Beautiful Shadows & Borders Instantly

Web design is all about details, and nothing adds depth and polish to a UI element quite like a perfect box shadow or a smooth border radius. Our CSS Box Generator is a powerful, visual tool designed to help developers and designers generate complex CSS3 properties in seconds without writing a single line of code manually.

Why Use a CSS Box Generator?

Visual Feedback: See your changes instantly. No more saving, refreshing, and guessing pixel values.
Cross-Browser Compatibility: We generate the standard CSS property along with -webkit- and -moz- prefixes to ensure your design looks consistent across all browsers.
Time Saving: Rapidly prototype different styles. Experiment with neomorphism, soft UI, or harsh drop shadows with simple sliders.
Learning Tool: Understand how properties like "spread radius" and "inset" affect the final look of an element.

How to Use This Tool

1. Adjust Box Shadow

Use the sliders to control the horizontal and vertical offset. Increase the blur radius for a softer shadow, or use the spread radius to expand the shadow's size. Toggle "Inset" for an inner shadow effect.

2. Style Borders

Round the corners of your element using the Border Radius slider. Add a border outline and pick any color you like to match your theme.

3. Customize Colors

Fine-tune the shadow color and opacity. A lower opacity black shadow often looks more natural than a solid gray one. You can also change the box background color to see how it contrasts.

4. Copy & Paste

Once you're happy with the result, the CSS code is automatically generated in the box below. Click "Copy" and paste it directly into your stylesheet.

Understanding CSS Box Shadow Properties

The box-shadow property accepts several values:

box-shadow: [h-offset] [v-offset] [blur] [spread] [color] [inset];

Horizontal Offset: Positive values push the shadow to the right, negative to the left.
Vertical Offset: Positive values push the shadow down, negative up.
Blur Radius: The higher the number, the more blurred (and larger) the shadow becomes.
Spread Radius: Positive values increase the size of the shadow, negative values decrease it.
Color: Defines the shadow's color. RGBA is recommended for transparency.
Inset: Changes the shadow from an outer drop shadow to an inner shadow.

Tips for Modern UI Design

Modern web design trends (like Material Design or Apple's Human Interface Guidelines) often rely on subtle, multi-layered shadows to create depth. Instead of one harsh shadow, try using a large blur radius with a very low opacity (e.g., 0.1 or 0.15). This mimics how light behaves in the real world, creating a "floating" effect that looks clean and professional.

CSS Box Generator

Box Shadow

Border & Radius

CSS Code