i have this form:
:-moz-placeholder {
  /* Firefox 18- */
  color: white;
}<form id="myForm" action="#" method="post">
  <div class="container">
    <div class="row">
      <div class="col-md-6 padding-2">
        <textarea class=" form-control textArea" rows="7" placeholder="Comments/Requests" name="textarea" id="textarea" required="required"></textarea>
      </div>
    </div>
  </div>
  placeholder not changing in textarea i tried this css tricks:the body have a blue background color and the placeholder should be white, it is showing gray...any help? i am new to web development... thanks in advance
 
     
    