= doctype html
html lang=en
  head
    meta charset=utf-8
    title Set a Default Value to the Yield Helper Method
  body
    h1 This is a base template
    = yield main
      | This message is rendered if the "main" content is not defined in the inner template.
    = yield sub
      | This message is rendered if the "sub" content is not defined in the inner template.
