div2.html.html

<html>
  <head>
    <title>div2</title>
    <style type="text/css">
      div#CentradaLS { position:absolute;
                       border-width: 3;
                       border-style: dashed;
                       top:50%; left:50%; width:500px; height:300px;
                       margin-left:-250px; margin-top:-150px; }
      p { color: #999999;
          text-indent: 25px;
          text-align: justify; }
    </style>
  </head>
<body bgcolor="#ffddee">
  <div id="CentradaLS">
    <p>... contenido de la caja...</p> </div>
</body>
</html>