+ 2.0 3.0 3.2 4.0 1.0 2.0 3.0 4.0   1.0 2.0 3.0 4.0   1.0 2.0       1.0 2.1

<lh> container start tag required end tag optional Sandia Reference

this provides a heading capability to lists. It is similar to <th> used for tables.
W3's description. It must be noted that this is conspicuous by its absence from the W3C HTML 4.0 specification.

class= + 2.0 3.0 3.2 4.0
dir=
	"ltr"
	"rtl"
id= + 2.0 3.0 3.2 4.0
lang= + 2.0 3.0 3.2 4.0