fun Row.col(content: String? = null, rich: Boolean = false, align: Align? = null, colWidth: CssSize? = null, colVerticalAlign: GridVerticalAlign? = null, classes: Set<String>? = null, className: String? = null, init: (Col.() -> Unit)? = null): Col
DSL builder extension function.
It takes the same parameters as the constructor of the built component.