The snippet library.
Small, practical examples. Search by task or narrow things down below.
Associate a control outside the form element
HTML: The form attribute links an external named control to the form’s ID.
HTML✓ Tested
Choose a local file through a labeled control
HTML: A file input exposes selected file metadata to the page without providing arbitrary filesystem access.
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Collect several checked values under one name
HTML: Only checked named checkboxes become successful form controls.
HTML✓ Tested
Disable a related group of controls
HTML: A disabled fieldset prevents editing its descendant controls and omits them from form submission.
HTML✓ Tested
Identify the selected submit action
HTML: Each submit button can supply its own named value for the same form.
HTML✓ Tested
Include a nonvisible value in form data
HTML: A named hidden input contributes data without adding a visible editing control.
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Keep an action button from submitting a form
HTML: Specify type button for controls whose purpose is a local action.
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Make an unavailable select option unselectable
HTML: A disabled option remains visible but cannot be selected through normal keyboard navigation.
HTML✓ Tested
Restore controls to their initial form defaults
HTML: A reset button restores default values rather than clearing every control.
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Submit a readonly value while preventing edits
HTML: Readonly controls remain in form data, unlike disabled controls.
HTML✓ Tested