This is an experimental technology
Check the Browser compatibility table carefully before using this in production.


The padding-block CSS property defines the logical block start and end padding of an element, which maps to physical padding properties depending on the element's writing mode, directionality, and text orientation.

/* <length> values */
padding-block: 10px 20px;  /* An absolute length */
padding-block: 1em 2em;   /* relative to the text size */
padding-block: 5% 2%;    /* relative to the nearest block container's width */
padding-block: 10px; /* sets both start and end values */

/* Keyword values */
padding-block: auto;

/* Global values */
padding-block: inherit;
padding-block: initial;
padding-block: unset;

These values corresponds to the padding-top and  padding-bottom, or  padding-right, and padding-left property depending on the values defined for writing-mode, direction, and text-orientation.

The values can be set individually as padding-block-start and padding-block-end. The inline direction property is padding-inline which sets padding-inline-start, and padding-inline-end.

Initial value0
Applies toall elements
Percentageslogical-width of containing block
Computed valueas <length>
Animation typediscrete
Canonical orderthe unique non-ambiguous order defined by the formal grammar



The padding-block property takes the same values as the padding-left property.

Formal syntax



HTML Content

  <p class="exampleText">Example text</p>

CSS Content

div {
  background-color: yellow;
  width: 120px;
  height: 120px;

.exampleText {
  writing-mode: vertical-rl;
  padding-block: 20px 40px;
  background-color: #c8c800;


Specification Status Comment
CSS Logical Properties and Values Level 1
The definition of 'padding-block' in that specification.
Editor's Draft Initial definition

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Chrome Full support 69
Full support 69
Disabled From version 69: this feature is behind the Experimental Web Platform Features preference (needs to be set to enabled). To change preferences in Chrome, visit chrome://flags.
Edge No support NoFirefox Full support 66IE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android Full support 69Edge Mobile No support NoFirefox Android Full support 66Opera Android No support NoSafari iOS No support NoSamsung Internet Android No support No


Full support  
Full support
No support  
No support
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.
User must explicitly enable this feature.
User must explicitly enable this feature.

See also

Document Tags and Contributors

Contributors to this page: mdnwebdocs-bot, rachelandrew
Last updated by: mdnwebdocs-bot,