Guidance
A phone number field with basic masking to format and validate phone numbers.
You'll need to include gnb-forms-validation-1.0.0.js to use this
component.
Phone number
HTML
<!-- Phone number with masking and validation -->
<div class="gnb-form-input">
<label for="phone-number">Phone <span class="required">*</span><span
class="sr-only">required</span></label>
<input type="tel" id="phone-number" name="phone" aria-describedby="phone-error"
placeholder="506-555-5555" onblur="validatePhoneNumber(this)">
<div class="gnb-form-validation" id="phone-error" style="display: none;">
</div>
</div>