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CSS Box Shadow Builder

Build a box-shadow declaration from explicit geometry and color.

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Three steps. That’s it.

A useful toolkit for text, data, images and calculations.

  1. 01

    Add your input

    Choose a tool, enter values or select a file.

  2. 02

    Make it yours

    Adjust the options and run the action.

  3. 03

    Take the result

    Copy the result or download its file.

CSS shadow generator online

Build a box-shadow declaration from explicit geometry and color. Use this to create a stylesheet starting point for a matching interface component. The generated styles are not applied to Kirikuba automatically.

How to use it

Paste JSON matching the structure in the example. Choose Run tool. Review the output, then copy or download it.

Worked examples

Use this to create a stylesheet starting point for a matching interface component. The generated styles are not applied to Kirikuba automatically.

Reproducible worked example

Settings: No additional settings.

Input:

{"x":0,"y":8,"blur":24,"spread":0,"color":"#14213d","opacity":0.18}

With the input and settings above, the tool produces:

Output:

.card {
  box-shadow: 0px 8px 24px 0px rgba(20, 33, 61, 0.18);
}

The example output has 3 lines. Compare its order, separators and whitespace with the input before copying the result.

Limitations and common mistakes

  • Generates a self-contained style draft. Paste the CSS into your own stylesheet and test it with matching HTML, keyboard interaction, contrast and target browsers.
  • Combined input is bounded to 150,000 characters; output text is bounded to 1.2 million characters. Some algorithms impose smaller limits, stated in their error messages.

Frequently asked questions

What format should I enter?

Paste JSON matching the structure in the example. The worked example shows the supported structure and actual output.

How can I create a CSS box shadow online?

Paste JSON matching the structure in the example. Choose Run tool. Review the output, then copy or download it.

Where is my input processed?

The bundled tool processes input in your browser. It does not upload tool input to a conversion service. Other site plugins, analytics, advertising and browser extensions may have separate behavior.

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