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HTML5 and CSS3: Visual QuickStart Guide, Seventh Edition by Bruce Hyslop, Elizabeth Castro

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Marking Important and Emphasized Text

The strong element denotes important text, while em conveys emphasis. You can use them individually or together as your content requires (Image and Image).

Image The first sentence has both strong and em, while the second has em only. If <em>under any circumstances</em> were marked up instead as <strong>under any circumstances</strong>, it would have greater importance than the text contained in the surrounding strong.

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