#dk_export_pdf {
    padding: 0px 5px;
    background: none;
    color: #c36;
    border: 1px solid #c36;
    cursor: pointer;
    margin: 0px;
    font-weight: 400;
}
#invoice{
width:900px;	
max-width:900px;
margin:auto;
background:#fff;
padding:30px;
}
@media print{

#dk_export_pdf{
display:none;
}
#dk_update_invoice{
display:none;
}
}