DAISY—Structure Guidelines: Elements, Inline Elements, Information Object Emphasis
A word or series of words that the author has emphasized through the use of some typographical convention such as italic or boldface type or underlining.
The <em> and <strong> tags are relative indicators of emphasis. The <em> tag indicates moderate emphasis and the <strong> tag heavier emphasis. These tags must be used with care since their application will depend upon the types of emphasis needed in a document. In a book in which italics and boldface are used for emphasis, <em> would mark the former, and <strong> the latter. However, if a book used boldface in some situations and underlined boldface in another, <em> would mark the first type of emphasis and <strong> the second.
<strong>...</strong> or <em>...</em>
The following paragraph would be marked up as follows:
“When pressing the blue button, hold down for two full seconds. And remember, DO NOT PRESS THE RED BUTTON!”
<p>When pressing the blue button, <em>hold down for two full
seconds.</em> And remember, <strong>DO NOT PRESS THE RED