This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.


The -webkit-text-stroke-width CSS property specifies the width of the stroke for text.

Initial value0
Applies toall elements
Computed valueabsolute <length>
Animation typediscrete
Canonical orderthe unique non-ambiguous order defined by the formal grammar


/* Keyword values */
-webkit-text-stroke-width: thin;
-webkit-text-stroke-width: medium;
-webkit-text-stroke-width: thick;

/* <length> values */
-webkit-text-stroke-width: 2px;
-webkit-text-stroke-width: 0.1em;
-webkit-text-stroke-width: 1mm;
-webkit-text-stroke-width: 5pt;

/* Global values */
-webkit-text-stroke-width: inherit;
-webkit-text-stroke-width: initial;
-webkit-text-stroke-width: unset;


The width of the stroke.

Formal syntax



CSS Content

p {
  margin: 0;
  font-size: 4em;
  -webkit-text-stroke-color: red;

#thin {
  -webkit-text-stroke-width: thin;

#medium {
  -webkit-text-stroke-width: 3px;

#thick {
  -webkit-text-stroke-width: 1.5mm;

HTML Content

<p id="thin">Thin stroke</p>
<p id="medium">Medium stroke</p>
<p id="thick">Thick stroke</p>


Specification Status Comment
Compatibility Standard
The definition of '-webkit-text-stroke-width' in that specification.
Living Standard Initial standardization
Safari CSS Reference
'-webkit-text-stroke-width' in that document.
Non-standard unofficial documentation Initial documentation

Browser compatibility

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari
Basic support (Yes) (Yes) 48.0 (48.0)[1] No support (Yes) (Yes)
Feature Android Edge Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support ? (Yes) 48.0 (48.0)[1] No support ? ?

[1] This feature is implemented behind the preference layout.css.prefixes.webkit, defaulting to false. Since Gecko 49 (Firefox 49.0 / Thunderbird 49.0 / SeaMonkey 2.46) the preference defaults to true.

See Also

Document Tags and Contributors

 Contributors to this page: libbymc, Sebastianz, cvrebert, mrenty, chutten
 Last updated by: libbymc,