18px left or right movement
22px top or bottom movement
Preview
Box shadow updates live
// CSS OUTPUT
// build layered css box shadows visually
Create CSS box shadows visually with live preview, multiple layers, inset mode, color controls, and one-click copy for clean frontend styling.
Move the offset, blur, spread, color, and opacity inputs until the preview matches your design.
Stack multiple shadows to create soft cards, floating panels, neumorphic surfaces, or stronger depth.
Use the output directly in your stylesheet, component, or design system token file.
This browser-based tool helps frontend developers design CSS box-shadow values visually instead of guessing numbers by hand.
The box-shadow property draws one or more shadows around an element box. Each layer can define horizontal offset, vertical offset, blur radius, spread radius, color, and optional inset behavior.
Yes. Click Add Layer to append the current shadow to the layer list. The tool joins layers with commas, which is the standard CSS syntax for layered shadows.
No. The generator runs in your browser. Your settings and copied CSS stay local to the page.
Use large shadows selectively. Subtle values usually feel cleaner, while heavy shadows work better for overlays, dialogs, and highlighted elements.
A CSS box shadow generator is a visual helper for creating the box-shadow property without repeatedly editing values by hand. The property is simple in concept, but it becomes difficult to tune when you need a precise balance of offset, blur, spread, opacity, and color. This tool gives you a live preview and produces copy-ready CSS, so you can experiment quickly and then paste the final result into your stylesheet.
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Box shadows are one of the fastest ways to create depth in a web interface. A flat card can feel clickable with a subtle shadow. A modal can feel closer to the viewer with a stronger shadow. A navigation menu can feel separated from the page with a narrow shadow beneath it. Because these details affect how users understand hierarchy, shadows are not just decoration. They help communicate which elements are interactive, elevated, floating, or grouped together.
The most common box-shadow syntax uses horizontal offset, vertical offset, blur radius, spread radius, and color. A positive horizontal offset moves the shadow to the right, while a negative value moves it left. A positive vertical offset moves the shadow down, while a negative value moves it up. Blur controls softness. Spread expands or contracts the shadow before the blur is applied. The color usually includes transparency, because realistic shadows are rarely fully opaque.
For example, a soft card shadow might use a small vertical offset, a large blur, a negative spread, and a low-opacity dark color. A sharper shadow might use less blur and more opacity. An inset shadow moves the shadow inside the element instead of outside it, which is useful for pressed buttons, input fields, or subtle recessed panels.
Many modern interfaces use more than one shadow layer. Instead of one harsh shadow, designers often stack two or three softer layers. A small close shadow adds contact with the surface, while a larger blurred shadow creates the illusion of height. This tool supports layered output, so you can add a current setting as a layer and continue tuning the next one. The final CSS is comma-separated and works in standard browsers.
After copying the generated CSS, you can paste it into a class, component stylesheet, or custom property. For design systems, consider saving shadows as elevation tokens such as --shadow-sm, --shadow-md, and --shadow-xl. This keeps visual depth consistent across cards, buttons, dropdowns, and modals. Consistency is especially important when multiple pages or components are built over time.
Performance is usually fine for a small number of shadows, but avoid applying very large blurred shadows to hundreds of elements at once. Heavy blur effects can become expensive during animation. For hover states, transition shadows carefully and keep animations short. A subtle change in offset or opacity is often enough to make a component feel responsive.
Use this generator when you are designing cards, product boxes, dashboards, pricing tables, buttons, modals, sidebars, dropdown menus, or any component that needs depth. It is also useful when matching a screenshot or translating a visual design into CSS. Instead of guessing values, adjust the sliders, preview the result, copy the final rule, and refine it in your project.