Documentation
Input mask
An input mask is a used to clarify the input format required in a given field and is helpful for users, removing confusion and reducing the number of validation errors.
Default markup
Use an input mask in the fields where users have to enter their phone number, to make the formatting rules clear and help them avoid confusion.
<label class="form-label">Telephone mask</label>
<input type="text" name="input-mask" class="form-control" data-mask="(00) 0000-0000" data-mask-visible="true" placeholder="(00) 0000-0000" autocomplete="off"/>