6. Standard Attributes
The <h1> to <h6> tags support the following standard
attributes:
Attribute Value Description DTD
class classname Specifies a classname for an element STF
dir rtl Specifies the text direction for the content in an element STF
ltr
id id Specifies a unique id for an element STF
lang language_code Specifies a language code for the content in an element STF
style style_definition Specifies an inline style for an element STF
title text Specifies extra information about an element STF
xml:lang language_code Specifies a language code for the content in an element, in STF
XHTML documents
7. Attribute Value Description DT
D
align left Deprecated. Use styles instead. TF
center Specifies the alignment of a heading
right
justify
8. Event Attributes
The <h1> to <h6> tags support the following event attributes:
Attribute Value Description DTD
onclick script Script to be run on a mouse click STF
ondblclick script Script to be run on a mouse double-click STF
onmousedown script Script to be run when mouse button is pressed STF
onmousemove script Script to be run when mouse pointer moves STF
onmouseout script Script to be run when mouse pointer moves out of an element STF
onmouseover script Script to be run when mouse pointer moves over an element STF
onmouseup script Script to be run when mouse button is released STF
onkeydown script Script to be run when a key is pressed STF
onkeypress script Script to be run when a key is pressed and released STF
onkeyup script Script to be run when a key is released STF
