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CSS mask-origin property

Last Updated : 15 Jul, 2025

The CSS mask-origin property determines the positioning reference of a CSS mask image applied to an element using mask-image. It defines where the mask image originates within the element's box model, influencing how the mask is positioned and clipped.

Syntax:

mask-origin: Keyword values
/* Or */
mask-origin: Multiple values
/* Or */
mask-origin: Non-standard keyword values
/* Or */
mask-origin: Global values

Property values: This property accepts the values mentioned above and described below:

CategoryDescription
Keyword valuesValues like content-box, padding-box, margin-box, border-box, fill-box, stroke-box, view-box, etc.
Non-standard keyword valuesValues like padding, border, content, etc.
Multiple valuesCombinations like padding-box, fill-box, view-box, border-box, etc.
Global valuesValues like inherit, unset, initial, etc.

Example 1: Below is the example that illustrates the mask-origin property using border-box :

Output:

👁 Image

Example 2: Below is the example that illustrates the mask-origin property using content-box :

Output:

👁 Image

Browsers Supported:

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