The mask-clip CSS property determines the area which is affected by a mask. The painted content of an element must be restricted to this area.
Syntax
/* <geometry-box> values */ mask-clip: content-box; mask-clip: padding-box; mask-clip: border-box; mask-clip: margin-box; mask-clip: fill-box; mask-clip: stroke-box; mask-clip: view-box; /* Keyword values */ mask-clip: no-clip; /* Non-standard keyword values */ -webkit-mask-clip: border; -webkit-mask-clip: padding; -webkit-mask-clip: content; -webkit-mask-clip: text; /* Multiple values */ mask-clip: padding-box, no-clip; mask-clip: view-box, fill-box, border-box; /* Global values */ mask-clip: inherit; mask-clip: initial; mask-clip: revert; mask-clip: revert-layer; mask-clip: unset;
One or more of the keyword values listed below, separated by commas.
Values
- content-box
- 
    The painted content is clipped to the content box. 
- padding-box
- 
    The painted content is clipped to the padding box. 
- border-box
- 
    The painted content is clipped to the border box. 
- margin-box
- 
    The painted content is clipped to the margin box. 
- fill-box
- 
    The painted content is clipped to the object bounding box. 
- stroke-box
- 
    The painted content is clipped to the stroke bounding box. 
- view-box
- 
    Uses the nearest SVG viewport as reference box. If a viewBoxattribute is specified for the element creating the SVG viewport, the reference box is positioned at the origin of the coordinate system established by theviewBoxattribute and the dimension of the reference box is set to the width and height values of theviewBoxattribute.
- no-clip
- 
    The painted content is not clipped. 
- borderNon-standard
- 
    This keyword behaves the same as border-box.
- paddingNon-standard
- 
    This keyword behaves the same as padding-box.
- contentNon-standard
- 
    This keyword behaves the same as content-box.
- textNon-standard
- 
    This keyword clips the mask image to the text of the element. 
Formal definition
| Initial value | border-box | 
|---|---|
| Applies to | All elements. In SVG, it applies to container elements excluding the defs element, all graphics elements and the use element | 
| Inherited | no | 
| Computed value | as specified | 
| Animation type | discrete | 
Formal syntax
[ <geometry-box> | no-clip ]#
Examples
Clipping a mask to the border box
Change the mask-clip value to any of the allowed values detailed above. If viewing the example in a Chromium-based browser change the value of -webkit-mask-clip.