strong element represents strong importance for its contents.
The relative level of importance of a piece of content is given by its number of ancestor
strong elements; each
strong element increases the importance of its contents.
Changing the importance of a piece of text with the
strong element does not change the meaning of the sentence.
Here is an example of a warning notice in a game, with the various parts marked up according to how important they are:
<p><strong>Warning.</strong> This dungeon is dangerous. <strong>Avoid the ducks.</strong> Take any gold you find. <strong><strong>Do not take any of the diamonds</strong>, they are explosive and <strong>will destroy anything within ten meters.</strong></strong> You have been warned.</p>