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
Web 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

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,