The inset-block
CSS property defines the logical block start and end offsets of an element, which maps to physical offsets depending on the element's writing mode, directionality, and text orientation. It corresponds to the top
and bottom
, or right
and left
properties depending on the values defined for writing-mode
, direction
, and text-orientation
.
/* <length> values */ inset-block: 3px 10px; inset-block: 2.4em 3em; inset-block: 10px; /* value applied to start and end */ /* <percentage>s of the width or height of the containing block */ inset-block: 10% 5%; /* Keyword value */ inset-block: auto; /* Global values */ inset-block: inherit; inset-block: initial; inset-block: unset;
Constituent properties
This property is a shorthand for the following CSS properties:
Syntax
Values
The inset-block
property takes the same values as the left
property.
Formal definition
Initial value | auto |
---|---|
Applies to | positioned elements |
Inherited | no |
Percentages | logical-height of containing block |
Computed value | same as box offsets: top , right , bottom , left properties except that directions are logical |
Animation type | a length, percentage or calc(); |
Formal syntax
<'top'>{1,2}
Examples
Setting block start and end offsets
HTML
<div> <p class="exampleText">Example text</p> </div>
CSS
div { background-color: yellow; width: 120px; height: 120px; } .exampleText { writing-mode: vertical-lr; position: relative; inset-block: 20px 50px; background-color: #c8c800; }
Result
Specifications
Specification | Status | Comment |
---|---|---|
CSS Logical Properties and Values Level 1 The definition of 'inset-block' in that specification. |
Editor's Draft | Initial definition |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
inset-block | Chrome
Full support
69
| Edge
Full support
79
| Firefox
Full support
63
| IE No support No | Opera
Full support
56
| Safari No support No | WebView Android No support No | Chrome Android
Full support
69
| Firefox Android
Full support
63
| Opera Android
Full support
48
| Safari iOS No support No | Samsung Internet Android No support No |
Legend
- Full support
- Full support
- No support
- No support
- User must explicitly enable this feature.
- User must explicitly enable this feature.
- Uses a non-standard name.
- Uses a non-standard name.
See also
- The mapped physical properties:
top
,right
,bottom
, andleft
writing-mode
,direction
,text-orientation