How do I change the color of a textarea?

It's not like affecting a text type input. Behold:

<script type="text/javascript">
   $(function() {
      var header = $(".emailTemplateHeader");
      var body = $(".emailTemplateTextArea");
      if (header[0].value == '<%=HeaderCopy %>') {
         $(".emailTemplateHeader").addClass('emailTriggerWatermark');
      }
      if (body[0].innerHTML == '<%=BodyCopy %>') {
         body[0].style.color = "#CCCCCC";
      }
   });
</script>