There are 6 meanings outlined in OED's entry for your noun masthead, two of which happen to be labelled obsolete. See ‘This means & use’ for definitions, use, and quotation evidence. This requires utilizing very carefully positioned white Place and lots of spacing in between distinctive items of textual content. https://sectordirectory.com/listings198355/the-smart-trick-of-masthead-that-no-one-is-discussing