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This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.


The transform-style CSS property determines if the children of the element are positioned in the 3D-space or are flattened in the plane of the element.

If flattened, the children will not exist on their own in the 3D-space.

As this property is not inherited, it must be set for all non-leaf descendants of the element.

Initial valueflat
Applies totransformable elements
Computed valueas specified
Canonical orderthe unique non-ambiguous order defined by the formal grammar
Creates stacking contextyes


/* Keyword values */
transform-style: preserve-3d;
transform-style: flat;

/* Global values */
transform-style: inherit;
transform-style: initial;
transform-style: unset;


Indicates that the children of the element should be positioned in the 3D-space.
Indicates that the children of the element are lying in the plane of the element itself.

Formal syntax

flat | preserve-3d


Specification Status Comment
CSS Transforms Level 1
The definition of 'transform-style' in that specification.
Working Draft Initial definition

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 12-webkit 10 (10)-moz
16 (16)[1]
No support 15-webkit (Yes)-webkit
Feature Android Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
Basic support 3.0-webkit 10.0 (10)-moz
16.0 (16)[1]
No support (Yes)-webkit (Yes)-webkit

[1] In addition to the unprefixed support, Gecko 44.0 (Firefox 44.0 / Thunderbird 44.0 / SeaMonkey 2.41) added support for a -webkit prefixed version of the property for web compatibility reasons behind the preference layout.css.prefixes.webkit, defaulting to false. Since Gecko 49.0 (Firefox 49.0 / Thunderbird 49.0 / SeaMonkey 2.46) the preference defaults to true.

See also

Document Tags and Contributors

 Last updated by: Sebastianz,