-webkit-mask-position-y
Non-standard: This feature is not standardized. We do not recommend using non-standard features in production, as they have limited browser support, and may change or be removed. However, they can be a suitable alternative in specific cases where no standard option exists.
The-webkit-mask-position-y CSS property sets the initial vertical position of a mask image.
Syntax
/* Keyword values */-webkit-mask-position-y: top;-webkit-mask-position-y: center;-webkit-mask-position-y: bottom;/* <percentage> values */-webkit-mask-position-y: 100%;-webkit-mask-position-y: -50%;/* <length> values */-webkit-mask-position-y: 50px;-webkit-mask-position-y: -1cm;/* Multiple values */-webkit-mask-position-y: 50px, 25%, -3em;/* Global values */-webkit-mask-position-y: inherit;-webkit-mask-position-y: initial;-webkit-mask-position-y: revert;-webkit-mask-position-y: revert-layer;-webkit-mask-position-y: unset;Values
<length-percentage>A length indicating the position of the top side of the image relative to the box's top padding edge. Percentages are calculated against the vertical dimension of the box padding area. A value of
0%means the top edge of the image is aligned with the box's top padding edge and a value of100%means the bottom edge of the image is aligned with the box's bottom padding edge.topEquivalent to
0%.bottomEquivalent to
100%.centerEquivalent to
50%.
Formal definition
| Initial value | 0% |
|---|---|
| Applies to | all elements |
| Inherited | no |
| Percentages | refer to the size of the box itself |
| Computed value | for<length> the absolute value, otherwise a percentage |
| Animation type | discrete |
Formal syntax
-webkit-mask-position-y =
[<length-percentage>|top|center|bottom]#
<length-percentage> =
<length>|
<percentage>
Examples
Vertically positioning a mask image
.exampleOne { -webkit-mask-image: url("mask.png"); -webkit-mask-position-y: bottom;}.exampleTwo { -webkit-mask-image: url("mask.png"); -webkit-mask-position-y: 25%;}Specifications
Not part of any standard.
Browser compatibility
See also
-webkit-mask-position,-webkit-mask-position-x,-webkit-mask-origin