Visible labels for input fields and groups (visible-labels)
Input fields and related field groups include visible <label> explaining required input.
Unlabeled phone number fields:
This example visually formats three input fields to resemble a U.S. phone number. However, there is no visible label identifying the group as a phone number. Screen readers may interpret the punctuation as labels, resulting in "(", ")", and "-" being read as labels, which violates WCAG 3.3.2 (Labels or Instructions).