OK, but can you give some examples of the difference?
Bold and strong are basically interchangeable because bold's only function in body text (traditional typography) is to give strong emphasis. Italic, on the other hand, is used both for emphasis and for orthographic conventions (titles, foreign words).
But isn't the main point of emphasis to offer cues for text-to-speech engine? If yes, then should it also emphasise things like titles for easier understanding?
Isn't there some original specification that explains the reasons behind their introduction?
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