column-rule-style
Summary
Specifies the style of the rule between columns. The column-rule-style values are the same as for border-style.
Overview table
- Initial value
 none- Applies to
 - multi-column elements
 - Inherited
 - No
 - Media
 - visual
 - Computed value
 - specified value
 - Animatable
 - No
 - CSS Object Model Property
 columnRuleStyle- Percentages
 - N/A
 
Syntax
column-rule-style: dashedcolumn-rule-style: dottedcolumn-rule-style: doublecolumn-rule-style: groovecolumn-rule-style: hiddencolumn-rule-style: insetcolumn-rule-style: nonecolumn-rule-style: outsetcolumn-rule-style: ridgecolumn-rule-style: solid
Values
- none
 - Default. No column rule is drawn, regardless of any specified 
column-rule-width. The computed value is set to 0. - dotted
 - Column rule is a dotted line.
 - dashed
 - Column rule is a dashed line.
 - solid
 - Column rule is a solid line.
 - double
 - Column rule is two parallel solid lines with a space between. The sum of the two single lines and the space between equals the 
column-rule-widthvalue. The column rule width must be at least 3 pixels wide to draw a double rule. - groove
 - 3-D groove is drawn in colors slightly lighter and darker than the value.
 - ridge
 - 3-D ridge is drawn in colors based on the value.
 - inset
 - 3-D inset is drawn in colors based on the value.
 - outset
 - 3-D outset is drawn in colors based on the value.
 - hidden
 - Same as 
none. 
Examples
Makes 3 columns with 4px dashed green column-rule.
/*
Makes 3 columns with 4px dashed green column-rule
*/
#columns {
  columns: 3;
  /* Prefix free example below, use vendor prefixes where needed */
  column-rule-style: dashed;
  column-rule-color: green;
  column-rule-width: 5px;
}
Related specifications
- CSS Multi-column Layout Module
 - W3C Candidate Recommendation
 
See also
Related articles
Multi-Column
column-rule-style
Attributions
Microsoft Developer Network: [Windows Internet Explorer API reference Article]