-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. top-
Equivalent to
0%. bottom-
Equivalent to
100%. center-
Equivalent 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