This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The padding-block-start
CSS property defines the logical block start padding of an element, which maps to a physical padding depending on the element's writing mode, directionality, and text orientation. It corresponds to the padding-top
, padding-right
, padding-bottom
, or padding-left
property depending on the values defined for writing-mode
, direction
, and text-orientation
.
It relates to padding-block-end
, padding-inline-start
, and padding-inline-end
, which define the other paddings of the element.
/* <length> values */ padding-block-start: 10px; /* An absolute length */ padding-block-start: 1em; /* A length relative to the text size */ /* <percentage> value */ padding-block-start: 5%; /* A padding relative to the block container's width */ /* Global values */ padding-block-start: inherit; padding-block-start: initial; padding-block-start: unset;
Initial value | 0 |
---|---|
Applies to | all elements |
Inherited | no |
Percentages | logical-width of containing block |
Media | visual |
Computed value | as <length> |
Animation type | discrete |
Canonical order | the unique non-ambiguous order defined by the formal grammar |
Syntax
Values
The padding-block-start
property takes the same values as the padding-left
property.
Formal syntax
<'padding-left'>
Example
HTML Content
<div> <p class="exampleText">Example text</p> </div>
CSS Content
div { background-color: yellow; width: 120px; height: 120px; } .exampleText { writing-mode: vertical-lr; padding-block-start: 20px; background-color: #C8C800; }
Specification
Specification | Status | Comment |
---|---|---|
CSS Logical Properties and Values Level 1 The definition of 'padding-block-start' in that specification. |
Editor's Draft | Initial definition |
Browser compatibility
Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | No | ? | 41 38 — 511 | No | No | No |
Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | IE mobile | Opera Android | iOS Safari |
---|---|---|---|---|---|---|---|
Basic support | No | ? | Yes | 41 38 — 511 | No | No | No |
1. From version 38 until version 51 (exclusive): this feature is behind the layout.css.vertical-text.enabled
preference (needs to be set to true
). To change preferences in Firefox, visit about:config.
See also
- The mapped physical properties:
padding-top
,padding-right
,padding-bottom
, andpadding-left
writing-mode
,direction
,text-orientation