<>
.know{
background: #fa7a20 none repeat scroll 0 0;
border: 1px solid #fa7a20;
border-radius: 5px;
color: #ffffff;
cursor: pointer;
float: right;
margin-right: 50px;
margin-top: -24px;
padding: 5px 10px;
}
.codebox{width:500px;height:200px;z-index:99; position:fixed; left:50%; top:50%; margin:-135px 0 0 -220px; border-radius:6px; -moz-border-radius:6px; background:rgba(247,247,247,0.95); background:#f8f8f8 !important; display:none;}