Use the HTML <b> element to draw attention to a word or phrase without saying that it has greater importance. section 8.1.3
Choose the treatment that matches the intended meaning:
- Use <b> when bold styling draws attention but does not add importance. section 8.1.3
- Use <strong> when the words are more important than surrounding text. section 8.1.3
- Use CSS font-weight with a generic element when boldness is purely aesthetic. section 8.1.3
Figure 8.12 The contents of the bolded text are extremely important, and the emphasis here is necessary to convey importance.
Compare visual bolding that conveys importance with attention-drawing bolding that does not. section 8.1.3

