how to create the custom span element in parsley code example

Example: parsley validation error placement

<div>
    <div class="radio radio-primary">
        <input type="radio" id="cellPhone1" value="1" name="rd_cell_phone" required="" data-parsley-error-message="Please select an option" data-parsley-errors-container="#cell-phone-validation-error-block">
        <label for="cellPhone1"> Yes </label>
    </div> 
    <div class="radio radio-primary">
        <input type="radio" id="cellPhone0" value="0" name="rd_cell_phone" required="" data-parsley-error-message="Please select an option" data-parsley-errors-container="#cell-phone-validation-error-block">
        <label for="cellPhone0"> No </label>
    </div> 
</div>
<div class="margin-top10" id="cell-phone-validation-error-block"></div>