[whatwg] strong and em difference not clear

Edward O'Connor hober0 at gmail.com
Tue Feb 17 12:45:02 PST 2009

> The HTML 5 spec doesn't give clear guidance on the choice between
> strong and em tags.

The spec distinguishes between importance (<strong>) and emphasis
(<em>) like so:

"The placement of emphasis changes the meaning of the sentence. The
element thus forms an integral part of the content."


"Changing the importance of a piece of text with the strong element
does not change the meaning of the sentence."

So, basically, putting <em> around different words in a sentence
changes the sentence's meaning, whereas moving <strong> around in the
same way doesn't alter the meaning of the text.

Do you think that's sufficiently clear? If not, do you have a
suggestion for how to express this difference better in the spec?

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