action div öffnen?

[Haze]

<div id='passf'>
     <input type='submit' id='open' name='open' value='' size='10' /> <br />
       <div id="open">
           <input type='text' name='' value=''><br />
        </div>
    </div>

´#passf {
float:left;
margin-left:1px;
height:30px;
width:300px;
background-image:url(images/passf.jpg);
}

#open:focus   {
              position:relative;
              border:none;
              margin-top:30px;
              height:300px;
              width:300px;
              background-color:#000000;
}