HTTP servers use this attribute to gather
information for HTTP response message headers.
Value type: Name
Table continued on following page
Appendix A: Semantic HTML
594
Attribute Name Description
id Is a unique identifier for the element within the whole document. It is mainly
used to identify the element for styling and scripting.
Value type: ID
ismap When present, it indicates that the current image element will be treated on the
server side as a map. This user agent will send to the server two variables with
the pointer device coordinates. The coordinates are in pixel and relative to the
top - left corner of the image element that the map is applied to. Their values
will be stored in two variables with the same name as the name attribute with
the suffix .x and .y .
Value type: Boolean
label
(optgroup)
Describes the group of options.
Value type: Text
label (option) Provides a short description of the option. The attribute may be used by some
agents as a replacement for the content of the option element.
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