“ This variable is a dictionary-like object, where each item is a list of CSS class names and a display name. When selected, that class will be prepended with dynlayout- and applied to the page's parent element. ”

“ Things to remember:
even if you set a {{default layout}}, the user can opt for any other layout according to their needs and preferences Dynamic Layouts apply only at Wikisource: the works should still be formatted correctly and legible when exported How to write dynamic layouts Dynamic layouts are defined in a javascript variable called self.WSLayouts. ”