<div class="field">
    <div class="error" id="error-firstname-25833552834913553">Le prénom est obligatoire
    </div>
    <div class="label">
         <label for="firstname-25833552834913553">Prénom<span class="mandatory-marker">*</span></label>
    </div>
    <div class="input invalid">
         <input aria-required="true" value="" name="firstname" id="firstname-25833552834913553" type="text" aria-invalid="true" aria-describedby="error-firstname-25833552834913553">
    </div>
</div>