CSS mask-image Property
Sets the image that is used as the mask layer for an element
Syntax
mask-image: none | <image> | url();Values
| Value | Description |
|---|---|
| none | No mask image (default) |
| url() | Image URL for the mask |
| linear-gradient() | Gradient as mask |
| radial-gradient() | Radial gradient mask |
Example
.gradient-mask {
mask-image: linear-gradient(to bottom, black, transparent);
-webkit-mask-image: linear-gradient(to bottom, black, transparent);
}Understanding CSS mask-image
The CSS mask-image property sets the image that is used as the mask layer for an element. As part of the Mask module in CSS, it is one of the most commonly used properties for controlling the visual presentation of web pages.
You can set mask-image to values such as none, url(), linear-gradient(), radial-gradient(), among others. Each value changes how the browser renders the affected element, giving you fine-grained control over your page layout and design. Choosing the right value depends on the specific design requirements of your project.
Common use cases for the mask-image property include responsive web design, component-based layouts, and creating visually consistent interfaces across devices. It works closely with related properties like mask, mask-size, mask-position to achieve complex styling effects. Understanding how these properties interact helps you write cleaner, more maintainable stylesheets.
Browser support for mask-image is excellent across all modern browsers including Chrome, Firefox, Safari, and Edge. For older browsers, consider using fallback values or progressive enhancement strategies. The property can also be set dynamically via JavaScript using element.style.maskImage or the CSS custom properties (variables) approach for theming.
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