HTML and CSS Reference
In-Depth Information
sessiOn 6.3 visual Overview
The focus , valid , and invalid
pseudo-elements can be
used for inline validation , in
which data errors are
highlighted as they occur
during data entry.
The required data type
indicates that a value is
required for the field, and
the form will be rejected
without it.
The number data type
creates a spin box; the min
and max attributes define
the minimum and maximum
values, respectively, the
step attribute defines the
amount the value increases
or decreases with each click
of the spin arrow.
The submit d a ta type
displays a submit button
used to submit the form to
the server; the value
attribute specifies the
button text.
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