<div class="row"> <form class="col s12"> <div class="row"> <div class="input-field col s6"> <input placeholder="Placeholder" id="first_name" type="text" class="validate"> <label for="first_name">First Name</label> </div> <div class="input-field col s6"> <input id="last_name" type="text" class="validate"> <label for="last_name">Last Name</label> </div> </div> <div class="row"> <div class="input-fie