.isp-printable{border:6px solid #333;padding:20px;max-width:900px;margin:20px auto;font-family:Arial;position:relative}
.isp-paid{position:absolute;right:40px;top:20px;font-size:48px;color:green;transform:rotate(-15deg);opacity:0.85}
.isp-items, .isp-totals{width:100%;border-collapse:collapse;margin-top:10px}
.isp-items th,.isp-items td,.isp-totals td{border:1px solid #333;padding:8px}
.isp-seller-customer{display:flex;justify-content:space-between}
.isp-print-btn{margin-top:15px;padding:10px 15px}
.isp-form label{display:block;margin:6px 0}
#isp-items-table input{width:100%}