Problem with Submit button, i don´t see and not working?

Problem with Submit button, i don´t see and not working?

Hi,

I have a problem with Submit button in jquery mobile because i don´t see and not working in the spmartphone :( 
My html is: 

!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<meta http-equiv="refresh" />
<title>Dardo Producciones - Contacto</title>

<script type="text/javascript" src="validar.js"></script>
<link href="mestilo.css" rel="stylesheet" type="text/css" />
<script src="jquery-1.11.0.min.js"></script>
<script src="jquery.mobile-1.4.1.js"></script>

</head>

<body leftmargin="0" topmargin="0" marginwidth="320" marginheight="100">
<table width="89%" align="center">
<form action="prose-form.php" method="post" data-ajax="false">
                
<tr>
<td height="54" valign="middle"><label for="nombre"><font color="#FFFFFF">Nombre*:</font> </label></td>
<td height="54" valign="middle">
   <input align="left" type="text" name="nombre"   size="20" id="nombre"/></td>


</tr>
<tr><td height="52"><label for="email"><font color="#FFFFFF">Email*:</font><span></span></label></td>
    <td><p align="left"><input align="left" id="email" type="email" name="email" size="20"/></p></td>
    
    </tr>
  <tr>
    <td height="50" ><label for="asunto"><font color="#FFFFFF">Asunto*:</font> </label></td>
  <td><p align="left"><input align="left" id="asunto" type="text" name="asunto"  size="20"/></p></td>
    </tr>
  <tr>
    <td height="83"><label for="mensaje"><font color="#FFFFFF">Mensaje*:</font> </label></td>
    
    <td align="left"><p align="left"><br /><textarea id="mensaje" name="mensaje" rows="5" cols="28"  ></textarea><br /><font color="#FFFFFF">* Todos los campos son  obligatorios </font><br /></p></td>
    </tr>
     
    <tr>
      <td height="44"></td>
    <td align="left"  ><input type="submit" name="button" id="button" value="Enviar Mensaje" /></td>
    </tr>
   
  </form>
      </table>
</body>

</html>

I need help, please. Do you need more information?

Thank you :)