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

Theshape-margin CSS property adds a margin to shape-outside.

/* <length> values */
shape-margin: 10px;
shape-margin: 20mm;

/* <percentage> value */
shape-margin: 60%;

/* Global values */
shape-margin: inherit;
shape-margin: initial;
shape-margin: unset;
Initial value 0
Applies to floats
Inherited no
Percentages refer to the width of the containing block
Media visual
Computed value as specified, but with relative lengths converted into absolute lengths
Animation type a length, percentage or calc();
Canonical order the unique non-ambiguous order defined by the formal grammar



Sets the margin of the shape to a <length> value or to a <percentage> of the width of the element's containing block.

Formal syntax


<length-percentage> = <length> | <percentage>


Specification Status Comment
CSS Shapes Module Level 1
The definition of 'shape-margin' in that specification.
Candidate Recommendation Initial definition

Browser compatibility

Feature Chrome Edge Firefox Internet Explorer Opera Safari
Basic support Yes ? No No No 7 -webkit-
Feature Android webview Chrome for Android Edge mobile Firefox for Android IE mobile Opera Android iOS Safari
Basic support Yes ? ? No No No ?

See also

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