GB01: We can use bold to highlight important keywords or phrases.
GB02: We must not use bold too often in a block of text to allow the highlighted elements to really stand out.
GB03: We must not emphasize entire paragraphs in bold.
GB04: If we have already emphasized an important word or phrase within a text, we should preferably not emphasize it there again.
GB05: We must not use bold and italics in the same emphasis (e.g., bold-italics).