mask-clip

Baseline 2023

Newly available

Since December 2023, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.

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.

语法

css

/* <coord-box> values */
mask-clip: content-box;
mask-clip: padding-box;
mask-clip: border-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.
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 viewBox attribute is specified for the element creating the SVG viewport, the reference box is positioned at the origin of the coordinate system established by the viewBox attribute and the dimension of the reference box is set to the width and height values of the viewBox attribute.
no-clip: The painted content is not clipped.
border: This keyword behaves the same as border-box.
padding: This keyword behaves the same as padding-box.
content: This keyword behaves the same as content-box.
text: This keyword clips the mask image to the text of the element.

正式定义

Initial value	`border-box`
Applies to	all elements; In SVG, it applies to container elements excluding the `<defs>` element and all graphics elements
Inherited	no
Computed value	as specified
Animation type	discrete

正式语法

mask-clip = 
  [ <coord-box> | no-clip ]#  

<coord-box> = 
  <paint-box>  |
  view-box     

<paint-box> = 
  <visual-box>  |
  fill-box      |
  stroke-box    

<visual-box> = 
  content-box  |
  padding-box  |
  border-box

示例

Clipping a mask to the border box

将mask-clip的值更改为上面详细说明的任何允许值。如果在基于 Chromium 的浏览器中查看示例，请更改-webkit-mask-clip的值。

规范

规范
CSS 遮罩模块级别 1 # the-mask-clip

浏览器兼容性

BCD 表格仅在浏览器中加载

另请参见

CSS 中的裁剪和遮罩