mask-position
The mask-position
CSS property sets the initial position, relative to the mask position layer set by mask-origin
, for each defined mask image.
css
/* Keyword values */
mask-position: top;
mask-position: bottom;
mask-position: left;
mask-position: right;
mask-position: center;
/* <position> values */
mask-position: 25% 75%;
mask-position: 0px 0px;
mask-position: 10% 8em;
/* Multiple values */
mask-position: top right;
mask-position: 1rem 1rem, center;
/* Global values */
mask-position: inherit;
mask-position: initial;
mask-position: revert;
mask-position: revert-layer;
mask-position: unset;
Syntax
One or more <position>
values, separated by commas.
Values
<position>
-
One to four values representing a 2D position regarding the edges of the element's box. Relative or absolute offsets can be given. Note that the position can be set outside of the element's box.
Formal definition
Initial value | center |
---|---|
Applies to | all elements; In SVG, it applies to container elements excluding the <defs> element and all graphics elements |
Inherited | no |
Percentages | refer to size of mask painting area minus size of mask layer image (see the text for background-position ) |
Computed value | Consists of two keywords representing the origin and two offsets from that origin, each given as an absolute length (if given a <length>), otherwise as a percentage. |
Animation type | a repeatable list of |
Formal syntax
mask-position =
<position>#
<position> =
[ left | center | right ] || [ top | center | bottom ] |
[ left | center | right | <length-percentage> ] [ top | center | bottom | <length-percentage> ]? |
[ [ left | right ] <length-percentage> ] && [ [ top | bottom ] <length-percentage> ]
<length-percentage> =
<length> |
<percentage>
Examples
Setting mask position
Change the mask-position
value to any of the allowed values detailed above.
If viewing the example in a Chromium-based browser change the value of -webkit-mask-position
.
Specifications
Specification |
---|
CSS Masking Module Level 1 # the-mask-position |
Browser compatibility
BCD tables only load in the browser