The align-content property applies to the block axis and justify-content to the inline axis. Any spacing added to the columns due to use of space distribution will be added to the gap between the columns, therefore making the gap larger than might be specified by the column-gap property.

Using a value of justify-content other than normal or stretch will cause column boxes to display at the column-width specified on the multicol container, and the remaining space distributed according to the value of justify-content.

The column-gap property was specified in earlier versions of the multiple-column layout specification, and has now been unified with the gap properties for other layout methods in box alignment. While other layout methods treat the initial value of column-gap as 0 multicol treats it as 1em, as in general you would not want to have no gap between columns.

• justify-content
• align-content
• column-gap

• Alignment subject
• Alignment container
• Fallback alignment