CSS Box Shadow Generator

Mastering UI Depth with the CSS Box Shadow Generator

Creating visual hierarchy is critical in modern web development. By applying depth and elevation to your UI elements, you guide the user's eye toward important interactive components like cards, modals, and primary buttons. Our free Box Shadow Generator allows frontend developers and designers to visually craft these effects and instantly export production-ready, cross-browser CSS code.

Understanding Box Shadow Properties

The CSS box-shadow property accepts several distinct values that determine how the shadow is cast behind or inside an HTML element. Understanding these parameters is key to creating soft, modern glassmorphism or neumorphism styles:

• Horizontal Offset (X): Controls the shadow's position along the horizontal axis. A positive value pushes the shadow to the right, while a negative value pulls it left.
• Vertical Offset (Y): Controls the shadow's position on the vertical axis. Positive values cast the shadow downward (the most common lighting setup), and negative values cast it upward.
• Blur Radius: Determines how soft or sharp the shadow edges are. A value of 0px creates a hard, solid edge. Higher values create a softer, more diffused gradient effect.
• Spread Radius: Expands or shrinks the total size of the shadow. Positive values make the shadow larger than the element itself, while negative values shrink it (often used to create shadows that only appear under the bottom edge).
• Color & Opacity: Defining the shadow using an rgba() value is heavily recommended, as it allows the background to partially bleed through the shadow for a more natural lighting effect.
• Inset: Adding the inset keyword flips the shadow from the outside of the box to the inside, making the element appear sunken into the page rather than raised above it.

Frequently Asked Questions (FAQs)