How long a H2 can be?

all text you want? Or limited?

[silverbytes]

I have a page with title in H1 and 3 paragraphs of text.

the first one is a description of the item being promoted.

2nd and 3rd provides more technical information.

I'd like to put emphasis in the first one using a heading. But I'm not sure if H2 H3 or H1 again?, should be used.

The question: is H2 or any heading limited in characters size that can contain? should a long paragraph use Hx?

The begining of sentence is what I want to remark, but it is redacted so I won't split it

[pete_m]

The h tags shouldn't really be used for entire paragraphs - just for headings. That's not to say that you *can't* (there are no technical limits), but just that you shouldn't.

There are two approaches here:

To emphasise the paragraph to the user:
You can use the <strong> tag, or use css to make the text larger or bold.

To emphasise keywords to search engines:
Why not re-write the page into shorter sections; precede each with a short <h2> heading that contains the relevant keywords.

[sem4u]

Yes, h tags should only be used for headings. If you want to emphasise text then why not use bold?

[g1smd]

I never use more than ten words in a heading, often much less.

The heading will then be followed by one long, or several short to long, paragraphs of content text.

Use [validator.w3.org...] and tick the "show outline" box. This will build a bulletpoint list of all of the words gleaned from your heading tags per page.

If that list does not look like a summary of your document then you are abusing the heading tags.

.

Headings are not to visually emphasise content, they are there to provide structure to a document. They also show the heading importance, with <h1> as the most important. Concentrate on conveying document structure, not thinking about what it looks like.

[DrDoc]

In other words... One sentence, at most.