November 1998
Intermediate to advanced
578 pages
28h 15m
English
<optgroup> — NN: 2, 3, 4 - MSIE: 2, 3, 4, 5 - HTML 4 - WebTV - Opera3
<optgroup>...</optgroup>
Defines a logical group of <options>. This
could be used by browsers to display hierarchical cascading menus.
<optgroups> cannot be nested.
label=
text
Specifies the label for the option group (required).
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