User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:2.0b12pre) Gecko/20110217 Firefox/4.0b12pre Build Identifier: Mozilla/5.0 (Windows NT 5.1; rv:2.0b12pre) Gecko/20110217 Firefox/4.0b12pre I’m using one of the templates for Tumblr and notice that <strong> is not bolding the text. While I realize the designer has not put in a Doctype, Firefox 3, IE8 and Opera have no problems (Chrome 7–9 do). I had hoped there’d still be some kind of quirks’ mode for Firefox 4. Strangely, I can go to a really old page I did in 2004 (e.g. http://lucire.com/2004a/0122fe0.shtml) with no Doctype, and the bolds render correctly (admittedly using the <b> tag). I also have this no-Doctype page I did in 2004, with <strong> surrounding Amsterdam and the date in the text. Here, it seems to work: http://jyanet.com/0102pr0.htm. To me, it seems to be unrelated to Doctype if two pages without a spec show <strong> differently. On the Tumblr page, the font specified has the bold weight called Heavy; in the Amsterdam page, the bold weight is called Extra Bold. Reproducible: Sometimes Steps to Reproduce: 1. Visit jackyan.tumblr.com. 2. Note all headings (first few words in each entry) should be in bold, but are not. 3. Actual Results: Bolded text appears as roman on this page with no Doctype and <strong> denoting the bold text. Expected Results: Bolded text appearing as bold. The font family I have specified at jackyan.tumblr.com has a bold weight that is called Heavy. However, it is correctly marked as a bold font in its settings (weight at 800).

As it stands weight of body (font-weight: 300) is 400 and strong 400; Changing body to 400 (or even 301) gives 400 and 700. Which seems to be the correct behaviour from http://www.w3.org/Style/css2-updates/css2/fonts.html#propdef-font-weight (bug 93725)

Thanks, John. I didn’t do the CSS on this one but I have changed the 300 to 400. I’ll see how Beta 12 goes (currently downloading something on 3·6).

John, thank you—that indeed was what was happening. Marking this closed.