scalatags.generic.Styles2
The columns CSS property is a shorthand property allowing to set both the column-width and the column-count properties at the same time.
MDN
Creates an StylePair from an Style and a value of type T, if there is an StyleValue of the correct type.
The columns CSS property is a shorthand property allowing to set both the column-width and the column-count properties at the same time.
MDN