html {
height: 100%;
width: 100%;
padding: 0px;
margin: 0px;
position: fixed;
}
body {
height: 100%;
padding: 5px;
margin: 0px;
}
#drop_zone {
border: 2px dashed #bbb;
-moz-border-radius: 5px;
-webkit-border-radius: 5px;
border-radius: 5px;
padding: 25px;
text-align: center;
font: 20pt bold;
color: #bbb;
height: 92%;
}