Jan : Wie groß ist H1? (pixel oder point)

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Habe die Lösung gefunden:
http://www.tedmontgomery.com/tutorial/headings.html

<H1>Heading Level #1</H1> 		<FONT SIZE="6"><B>Heading Level #1</B></FONT>  
<H2>Heading Level #2</H2> 		<FONT SIZE="5"><B>Heading Level #2</B></FONT>  
<H3>Heading Level #3</H3> 		<FONT SIZE="4"><B>Heading Level #3</B></FONT>  
<H4>Heading Level #4</H4> 		<FONT SIZE="3"><B>Heading Level #4</B></FONT>  
<H5>Heading Level #5</H5> 		<FONT SIZE="2"><B>Heading Level #5</B></FONT>  
<H6>Heading Level #6</H6> 		<FONT SIZE="1"><B>Heading Level #6</B></FONT>

http://www.w3.org/TR/CSS2/fonts.html#font-size-props

"On a computer screen a scaling factor of 1.2 is suggested between adjacent indexes; if the 'medium' font is 12pt, the 'large' font could be 14.4pt. Different media may need different scaling factors. Also, the user agent should take the quality and availability of fonts into account when computing the table. The table may be different from one font family to another."

Demnach ist
font size 3 = medium   = h4  = basisgröße * 1.2 ^ 0
font size 4 = large    = h3  = basisgröße * 1.2 ^ 1
font size 5 = x-large  = h2  = basisgröße * 1.2 ^ 2
font size 6 = xx-large = h1  = basisgröße * 1.2 ^ 3