CSS column-rule Property
Shorthand for column-rule-width, column-rule-style, and column-rule-color between columns
Syntax
column-rule: <width> <style> <color>;Values
| Value | Description |
|---|---|
| none | No rule |
| 1px solid #333 | Thin solid rule |
| 2px dashed rgba(255,255,255,0.2) | Dashed semi-transparent rule |
Example
.article {
column-count: 2;
column-rule: 1px solid rgba(255, 255, 255, 0.1);
}Understanding CSS column-rule
The CSS column-rule property shorthand for column-rule-width, column-rule-style, and column-rule-color between columns. As part of the Columns module in CSS, it is one of the most commonly used properties for controlling the visual presentation of web pages.
You can set column-rule to values such as none, 1px solid #333, 2px dashed rgba(255,255,255,0.2), among others. Each value changes how the browser renders the affected element, giving you fine-grained control over your page layout and design. Choosing the right value depends on the specific design requirements of your project.
Common use cases for the column-rule property include responsive web design, component-based layouts, and creating visually consistent interfaces across devices. It works closely with related properties like columns, column-gap, border to achieve complex styling effects. Understanding how these properties interact helps you write cleaner, more maintainable stylesheets.
Browser support for column-rule is excellent across all modern browsers including Chrome, Firefox, Safari, and Edge. For older browsers, consider using fallback values or progressive enhancement strategies. The property can also be set dynamically via JavaScript using element.style.columnRule or the CSS custom properties (variables) approach for theming.
Related Properties
Explore More CSS Properties
Browse our complete reference of 251 CSS properties with syntax, examples, and tips.