.topbutton {
width:80px;
border:2px solid #ccc;
background:#ADFF2F;
text-align:center;
padding:5px;
position:fixed;
bottom:25px;
right:25px;
cursor:pointer;
color:#333;
font-family:verdana;
font-size:12px;
border-radius: 5px;
-moz-border-radius: 5px;
-webkit-border-radius: 5px;                                            
-khtml-border-radius: 5px;
}