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CSS Box Shadow Generator

Free online tool to create and customize CSS box shadows with live preview.

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Preview

Generated CSS

.box-shadow-element {
  width: 200px;
  height: 150px;
  background-color: #ffffff;
  border-radius: 8px;
  box-shadow: 0px 4px 8px 0px rgba(0, 0, 0, 0.2);
}

Element Settings

Shadows (1)

More Presets

How to Use Box Shadow Generator

1. Choose a Preset: Start with one of our predefined shadow styles or begin with the default shadow.
2. Customize: Adjust position, blur, spread, color, and opacity. Add multiple shadows for complex effects.
3. Copy CSS: Click "Copy CSS" to get the complete CSS code ready to use in your project.

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About CSS Box Shadow

The CSS box-shadow property is a powerful way to add depth and dimension to elements on your webpage. It creates a shadow effect around an element's frame, helping to establish visual hierarchy and improve the user interface design. Our Box Shadow Generator tool makes it easy to create and customize beautiful shadow effects without having to remember the complex syntax.

Understanding Box Shadow Syntax

The CSS box-shadow property uses the following syntax:

box-shadow: [inset] x-offset y-offset blur-radius spread-radius color;

Each part of the syntax controls a different aspect of the shadow:

•
inset (optional): By default, shadows are outset (drop shadows). Adding the inset keyword creates an inner shadow instead.
•
x-offset: The horizontal offset of the shadow. A positive value puts the shadow on the right side of the box, a negative value puts the shadow on the left side.
•
y-offset: The vertical offset of the shadow. A positive value puts the shadow below the box, a negative value puts the shadow above the box.
•
blur-radius: The blur effect. The higher the number, the more blurred the shadow will be, creating a softer effect. A value of 0 creates a sharp shadow.
•
spread-radius: The size of the shadow. Positive values increase the size, negative values decrease the size.
•
color: The color of the shadow. This can be any valid CSS color value (hex, RGB, RGBA, HSL, etc.).

Multiple Shadows

You can apply multiple shadows to a single element by separating each shadow definition with a comma. This allows for complex and layered shadow effects. For example:

box-shadow: 0 2px 4px rgba(0,0,0,0.2), 0 8px 16px rgba(0,0,0,0.1);

This creates a dual shadow effect with a subtle close shadow and a more diffused distant shadow, creating a realistic depth effect.

Common Box Shadow Use Cases

Card Shadow

box-shadow: 0 4px 6px rgba(0,0,0,0.1);

Floating Element

box-shadow: 0 10px 25px rgba(0,0,0,0.1);

Inset Shadow

box-shadow: inset 0 2px 5px rgba(0,0,0,0.15);

Layered Shadows

box-shadow: 0 2px 4px rgba(0,0,0,0.1), 0 8px 16px rgba(0,0,0,0.1);

Browser Compatibility

The box-shadow property is supported in all modern browsers. For older browsers, you might need to use vendor prefixes:

-webkit-box-shadow: 0 4px 6px rgba(0,0,0,0.1);
-moz-box-shadow: 0 4px 6px rgba(0,0,0,0.1);
box-shadow: 0 4px 6px rgba(0,0,0,0.1);

However, these prefixes are rarely needed in modern web development as all current browsers support the standard box-shadow property.

Performance Considerations

While box shadows can enhance your design, be mindful that complex shadows (especially with large blur values) or multiple shadows on many elements can impact rendering performance. For performance-critical applications, consider using simpler shadows or limiting their use to key elements.

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Frequently Asked Questions

What is a CSS box shadow?

A CSS box shadow is a visual effect that adds a shadow to an HTML element's box. It can create depth, elevation, and visual hierarchy in web designs. The box-shadow property allows you to control the shadow's color, offset, blur, spread, and whether it's inset or outset.

How do I use the box shadow CSS in my project?

Once you've created your desired box shadow with our generator, simply copy the generated CSS code and paste it into your CSS file or style tag. You can apply the box-shadow property to any HTML element that you want to have a shadow effect.

Can I create multiple shadows with this tool?

Yes, our Box Shadow Generator allows you to add multiple shadows to create complex and layered shadow effects. You can add, edit, and remove shadows as needed, and the tool will generate the correct CSS code with all your shadows combined.

What's the difference between outset and inset shadows?

An outset shadow (the default) appears as if the light source is above the element, creating a shadow that extends outward from the element. An inset shadow appears as if the element is pressed into the page, with the shadow appearing inside the element's boundaries. Inset shadows are useful for creating pressed button effects or recessed areas.