CustomTag(elementName: String, content: String? = null, rich: Boolean = false, align: Align? = null, classes: Set<String> = setOf(), attributes: Map<String, String> = mapOf(), init: (CustomTag.() -> Unit)? = null)
rich - determines if content can contain HTML code
classes - a set of CSS class names
attributes - a map of additional attributes
init - an initializer extension function
Constructor