CSS column-rule-color Property

.example {
  column-count: 3;
  column-rule: 5px dashed;
  column-rule-color: red;
}

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Meaning

The column-rule-color property defines the color of any rules between columns in a multicolumn text flow.

Default value:	The current color of the element
Inherited:	No
Animatable:	Yes
Version:	CSS3
JavaScript syntax:	`object.style.columnRuleColor="color\|initial\|inherit\|revert\|revert-layer\|unset";`

column-rule-color: color|initial|inherit|revert|revert-layer|unset;

The numbers in the table specify the first browser version that fully supports the property.

The following table describes the values of this property.

Value	Description
color	Specifies the color of the rule.
initial	Sets this property to its default value.
inherit	If specified, the associated element takes the computed value of its parent element animation-delay property.
revert	Reverts the cascaded value of the property from its current value to the value the property
revert-layer	Rollback styles to the ones specified in previous cascade layers.
unset	Resets a property to its inherited value if the property naturally inherits from its parent, and to its initial value if not.

selectors {
  column-rule-color: The current color of the element;
}

.example {
  column-count: 3;
  column-rule: 5px dashed red;
}