<html>
  <head>
    <title>div1</title>
    <style type="text/css">
      div#CentradaLL { position:absolute;
                       border-width: 3;
                       border-style: dashed;
                       top:10%; left:10%; width:80%; height:80%; }
      p { color: #999999;
          text-indent: 25px;
          text-align: justify; }
    </style>
  </head>
<body bgcolor="#ffddee">
  <div id="CentradaLL">
    <p>... contenido de la caja...</p> </div>
</body>
</html>