HTML <label> tag: for attribute usage -


i have quick question usage of for attribute in <label> tags. know should refer id of input element label, see being used refer name attribute of <input> tag in html forms. valid usage?

additionally, how should label set of, say, <input type="radio"> tags? each require individual label, of course, how correctly label group form?

thanks in advance!

the label element defined in html 4.01 for attribute “matches field id value”. purely syntactic requirement: attribute declared type idref, , implies html validator issues error message if value not match id attribute value in same document. in html5, formalism different, principle same.

thus, must match id attribute value, , enforced browsers: element won’t act label anything, functionally, requirement violated. page still work, reduced usability , accessibility. same value may appear name attribute value, too, since such attributes have name space of own, say.

there no way “label” set of radio buttons, or other controls, in sense label defines labels (i.e., clicking on label element typically focuses on associated control). , no need either.

you can, , should, have heading-like caption set of radio buttons, explaining about. that’s not job label. can use suitable heading element (e.g., h2), example. construct designed purpose legend element in fieldset element. can contain brief description of radio buttons wrapped inside fieldset.


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