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The shape-margin CSS property specifies a margin for a CSS shape created using shape-outside.
The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.
The margin lets you adjust the distance between the edges of the shape (the float element) and the surrounding content.
Syntax
/* <length> values */ shape-margin: 10px; shape-margin: 20mm; /* <percentage> value */ shape-margin: 60%; /* Global values */ shape-margin: inherit; shape-margin: initial; shape-margin: unset;
Values
<length-percentage>- 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>where
<length-percentage> = <length> | <percentage>
Example
HTML
<section> <div class="shape"></div> We are not quite sure of any one thing in biology; our knowledge of geology is relatively very slight, and the economic laws of society are uncertain to every one except some individual who attempts to set them forth; but before the world was fashioned the square on the hypotenuse was equal to the sum of the squares on the other two sides of a right triangle, and it will be so after this world is dead; and the inhabitant of Mars, if he exists, probably knows its truth as we know it.</section>
CSS
section {
max-width: 400px;
}
.shape {
float: left;
width: 150px;
height: 150px;
background-color: maroon;
clip-path: polygon(0 0, 150px 150px, 0 150px);
shape-outside: polygon(0 0, 150px 150px, 0 150px);
shape-margin: 20px;
}
Result
Specifications
| Specification | Status | Comment |
|---|---|---|
| CSS Shapes Module Level 1 The definition of 'shape-margin' in that specification. |
Candidate Recommendation | Initial definition |
| 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 |
Browser compatibility
| Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | 37 | ? | 62 61 — 621 | No | 24 | 10.1 -webkit- |
| Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | Opera Android | iOS Safari | Samsung Internet |
|---|---|---|---|---|---|---|---|
| Basic support | 37 | 37 | ? | 62 61 — 621 | 24 | 10.3 | 4.0 |
1. From version 61 until version 62 (exclusive): this feature is behind the layout.css.shape-outside.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.