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The column-rule shorthand CSS property sets the width, style, and color of the line drawn between columns in a multi-column layout.

It is a shorthand property that sets the individual column-rule-* properties in a single, convenient declaration: column-rule-width, column-rule-style, and column-rule-color.

Note: As with all shorthand properties, any individual value that is not specified is set to its corresponding initial value (possibly overriding values previously set using non-shorthand properties).

Syntax

column-rule: dotted;
column-rule: solid 8px;
column-rule: solid blue;
column-rule: thick inset blue;

/* Global values */
column-rule: inherit;
column-rule: initial;
column-rule: unset;

The column-rule property is specified as one, two, or three of the values listed below, in any order.

Values

<'column-rule-width'>
Is a <length> or one of the three keywords, thin, medium, or thick. See border-width for details.
<'column-rule-style'>
See border-style for possible values and details.
<'column-rule-color'>
Is a <color> value.

Formal syntax

<'column-rule-width'> || <'column-rule-style'> || <'column-rule-color'>

Examples

Example 1

/* Same as "medium dotted currentColor" */
p.foo { column-rule: dotted; }

/* Same as "medium solid blue" */
p.bar { column-rule: solid blue; }

/* Same as "8px solid currentColor" */
p.baz { column-rule: solid 8px; }

p.abc { column-rule: thick inset blue; }

Example 2

HTML

<p class="content-box">
  This is a bunch of text split into three columns.
  Take note of how the `column-rule` property is used
  to adjust the style, width, and color of the rule
  that appears between the columns.
</p>

CSS

.content-box {
  padding: 0.3em;
  background: #ff7;
  column-count: 3;
  column-rule: inset 2px #33f;
}

Result

Specifications

Specification Status Comment
CSS Multi-column Layout Module
The definition of 'column-rule' in that specification.
Working Draft Initial definition.

Initial valueas each of the properties of the shorthand:
Applies tomulticol elements
Inheritedno
Mediavisual
Computed valueas each of the properties of the shorthand:
Animation typeas each of the properties of the shorthand:
Canonical orderper grammar

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
column-ruleChrome Full support 50
Full support 50
Full support Yes
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Edge Full support 12
Full support 12
Full support 12
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Firefox Full support 52
Full support 52
Full support 3.5
Prefixed Notes
Prefixed Implemented with the vendor prefix: -moz-
Notes Before Firefox 3, the default value for the normal keyword was 0 and not 1em.
IE Full support 10Opera Full support 11.1
Full support 11.1
Full support 15
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Safari Full support 3
Prefixed
Full support 3
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
WebView Android Full support YesChrome Android Full support 50
Full support 50
Full support Yes
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Edge Mobile ? Firefox Android Full support 52
Full support 52
Full support Yes
Prefixed
Prefixed Implemented with the vendor prefix: -moz-
Opera Android ? Safari iOS ? Samsung Internet Android Full support 5.0
Full support 5.0
Full support Yes
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-

Legend

Full support  
Full support
Compatibility unknown  
Compatibility unknown
See implementation notes.
See implementation notes.
Requires a vendor prefix or different name for use.
Requires a vendor prefix or different name for use.