CSS
Box Shadow
Web Design
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How to Use Box Shadow in CSS for Stunning Effects

Deepak Tewatia
August 31, 2025
3 min read

Introduction

Box shadow in CSS adds depth to your designs. By using simple code, you can create shadows around boxes, giving them a 3D look. You can change the shadow's color, size, and blur to get the effect you want. Here’s the thing: it’s an easy way to make your web pages pop!

What is Box Shadow?

Box shadow is a CSS property that allows you to add a shadow effect to an element. This can enhance the visual appeal of your website and create a more engaging user experience. By adjusting the shadow's properties, you can create different effects that fit your design style.

Basic Syntax of Box Shadow

The basic syntax of the box shadow property looks like this:

box-shadow: h-offset v-offset blur-radius spread-radius color;
  • h-offset: This is the horizontal offset of the shadow. Positive values move the shadow to the right, while negative values move it to the left.
  • v-offset: This is the vertical offset of the shadow. Positive values move the shadow down, and negative values move it up.
  • blur-radius: This controls how blurry the shadow looks. The higher the value, the softer the shadow.
  • spread-radius: This affects the size of the shadow. Positive values make the shadow larger, while negative values make it smaller.
  • color: This sets the color of the shadow.

Creating Your First Box Shadow

Let’s break it down with a simple example. Here’s how you can add a box shadow to a div element:

div {
    width: 200px;
    height: 100px;
    background-color: lightblue;
    box-shadow: 5px 5px 10px gray;
}

In this case, the shadow moves 5 pixels to the right and 5 pixels down. It has a blur radius of 10 pixels and a gray color.

Playing with Different Effects

Now that you understand the basics, let’s explore some different styles. Here are a few ways to change the box shadow:

1. Soft Shadow

box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);

This example creates a soft shadow with a black color at 50% opacity.

2. Inset Shadow

Sometimes you may want the shadow to appear inside the element. This can create a nice effect:

box-shadow: inset 2px 2px 5px lightgray;

3. Colorful Shadow

Shadows can also be colorful! Try this example:

box-shadow: 3px 3px 8px rgba(255, 0, 0, 0.7);

This gives a bright red shadow.

Combining Shadows

What this really means is that you can also combine multiple shadows. Just separate them with a comma:

box-shadow: 2px 2px 4px gray, -2px -2px 10px lightblue;

Best Practices

  • Use shadows sparingly. Too many shadows can make your design look cluttered.
  • Consider your color scheme. Make sure the shadow color complements your design.
  • Test on different screens. Make sure your shadows look good on both mobile and desktop.

Conclusion

With box shadows in CSS, you can easily add depth and style to your web projects. They are a simple yet powerful tool in your design kit. By playing around with different settings, you can create stunning effects that enhance your overall design. So go ahead, start experimenting with box shadows and watch your designs come to life!

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