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CSS Pocket Reference, 4th Edition by Eric A. Meyer

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Name

column-rule-width

Values:

thin | medium | thick | <length>

Initial value:

medium

Applies to:

Elements laid out using multiple columns

Inherited:

No

Computed value:

Absolute length; 0 if the style of the border is none or hidden

Description:

Defines the width of the “rules” (vertical lines) drawn between columns in an element laid out with multiple columns.

Examples:

#d01 {column-rule-width: 5px;}
#d02 {column-rule-width: 2em;}

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