title: Grey border line on textarea when i use firefox
body: <p>i have a problem with my webpage: When i use firefox and a text area in my html, i can see in this textarea a border line of 2-3px grey, how you can see in my page: <a href="http://rossimelthomas.com/contact.html" rel="nofollow">http://rossimelthomas.com/contact.html</a>.
  In your opinion how can i fix this problem?</p>
  
  <p>if you don't understand what is the problem, i can send a screenshot to you, anyway thanks for all your future helps (maybe) and sorry for my english.
  i post here my html:</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;form action="php/mail_send.php" method="POST"&gt;
          &lt;input autocomplete="off" onfocus="if (this.value=='Name') this.value = ''" onblur="if (this.value=='') this.value = 'Name'" style="border: solid 1px; border-radius: 5px; height:25px; border-color: white; width: 65%; "  value="Name" type="text" name="name"&gt;
          &lt;input autocomplete="off" onfocus="if (this.value=='E-Mail') this.value = ''" onblur="if (this.value=='') this.value = 'E-Mail'" style="margin-top: 20px; border: thin 1px; border-radius: 5px;  height:25px; border-color: white; width: 65%" value="E-Mail" type="email" name="email"&gt;
          &lt;input autocomplete="off" onfocus="if (this.value=='Subject') this.value = ''" onblur="if (this.value=='') this.value = 'Subject'" style="margin-top: 20px; border: thin 1px; border-radius: 5px; height:25px;  border-color: white; width: 65%" value="Subject" type="text" name="subject"&gt;
          &lt;textarea class="txt_field" style="    color: #99a0aa;margin-top: 20px;  font: normal normal 16px/20px pnova-regular, helvetica, sans-serif; border: thin 1px; border-radius: 5px; border-color: white; width: 65%; height: 300px;" type="text" name="message"&gt;Message&lt;/textarea&gt;
          &lt;input style="margin-top: 20px; border: thin 1px; border-radius: 10px; border-color: white; cursor:pointer; margin-bottom: 50px; background-color: #4db849; width:65%; height: 45px; color: white; font-weight: 700;" type="submit" value="Send Message"&gt;
          &lt;/form&gt;</code></pre>
  </div>
  </div>
  </p>