Help: "column-rule-width" CSS property Help: "column-rule-width" CSS propertyThis property sets the width of the rule between columns. Negative values are not allowed.
| CSS Level | Value |
|---|---|
| CSS 2.1 | (invalid) |
| CSS3 | <border-width>, where <border-width> is "thin", "medium", "thick", or a non-negative length |