This feature is well established and works across many devices and browser versions. It’s been available across browsers since March 2017.
The column-rule-color CSS property sets the color of the line drawn between columns in a multi-column layout.
column-rule-color: red;
column-rule-color: rgb(48 125 222);
column-rule-color: hsl(120 80% 40% / 0.6);
column-rule-color: currentColor;
<section id="default-example">
<p id="example-element">
London. Michaelmas term lately over, and the Lord Chancellor sitting in
Lincoln's Inn Hall. Implacable November weather. As much mud in the streets
as if the waters had but newly retired from the face of the earth, and it
would not be wonderful to meet a Megalosaurus, forty feet long or so,
waddling like an elephantine lizard up Holborn Hill.
</p>
</section>
#example-element {
columns: 3;
column-rule: solid;
text-align: left;
}
/* <color> values */ column-rule-color: red; column-rule-color: rgb(192 56 78); column-rule-color: transparent; column-rule-color: hsl(0 100% 50% / 60%); /* Global values */ column-rule-color: inherit; column-rule-color: initial; column-rule-color: revert; column-rule-color: revert-layer; column-rule-color: unset;
The column-rule-color property is specified as a single <color> value.
<color>The color of the rule that separates columns.
| Initial value | currentcolor |
|---|---|
| Applies to | multicol elements |
| Inherited | no |
| Computed value | computed color |
| Animation type | a color |
column-rule-color =
<line-color-list> |
<auto-line-color-list>
<line-color-list> =
[ <line-color-or-repeat> ]+
<auto-line-color-list> =
[ <line-color-or-repeat> ]* <auto-repeat-line-color> [ <line-color-or-repeat> ]*
<line-color-or-repeat> =
<color> |
<repeat-line-color>
<auto-repeat-line-color> =
repeat( auto , [ <color> ]+ )
<repeat-line-color> =
repeat( [ <integer [1,∞]> ] , [ <color> ]+ )
<p> This is a bunch of text split into three columns. The `column-rule-color` property is used to change the color of the line that is drawn between columns. Don't you think that's wonderful? </p>
p {
column-count: 3;
column-rule-style: solid;
column-rule-color: blue;
}
| Specification |
|---|
| CSS Multi-column Layout Module Level 1> # crc> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
column-rule-color |
501 | 1212 | 523.5–74 | 11.115 | 93 | 5018 | 524 | 11.114 | 91 | 5.01.0 | 504.4 | 91 |
<color> data typecolor, background-color, border-color, outline-color, text-decoration-color, text-emphasis-color, text-shadow, and caret-color
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https://developer.mozilla.org/en-US/docs/Web/CSS/column-rule-color