Web/CSS/column-rule

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

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.

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 definition

Initial value	as each of the properties of the shorthand: `column-rule-width`: `medium` `column-rule-style`: `none` `column-rule-color`: `currentcolor`
Applies to	multicol elements
Inherited	no
Computed value	as each of the properties of the shorthand: `column-rule-color`: computed color `column-rule-style`: as specified `column-rule-width`: the absolute length; `0` if the `column-rule-style` is `none` or `hidden`
Animation type	as each of the properties of the shorthand: `column-rule-color`: a color `column-rule-style`: discrete `column-rule-width`: a length

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 ModuleThe definition of 'column-rule' in that specification.	Working Draft	Initial definition.

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`column-rule`	Chrome Full support 50 Full support 50 Full support 1 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 No support 3.5 — 74 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 10	Opera Full support 11.1 Full support 11.1 Full support 15 Prefixed' Prefixed' Implemented with the vendor prefix: -webkit-	Safari Full support 9 Full support 9 Full support 3 Prefixed' Prefixed' Implemented with the vendor prefix: -webkit-	WebView Android Full support 50 Full support 50 Full support ≤37 Prefixed' Prefixed' Implemented with the vendor prefix: -webkit-	Chrome Android Full support 50 Full support 50 Full support 18 Prefixed' Prefixed' Implemented with the vendor prefix: -webkit-	Firefox Android Full support 52 Full support 52 Full support 4 Prefixed' Prefixed' Implemented with the vendor prefix: -moz-	Opera Android Full support 11.1 Full support 11.1 Full support 14 Prefixed' Prefixed' Implemented with the vendor prefix: -webkit-	Safari iOS Full support 9 Full support 9 Full support 1 Prefixed' Prefixed' Implemented with the vendor prefix: -webkit-	Samsung Internet Android Full support 5.0 Full support 5.0 Full support 1.0 Prefixed' Prefixed' Implemented with the vendor prefix: -webkit-

Legend

Full support: Full support
See implementation notes.': See implementation notes.
Requires a vendor prefix or different name for use.': Requires a vendor prefix or different name for use.

column-rule by Mozilla Contributors is licensed under CC-BY-SA 2.5.