.popinfo {
  position: relative;
  background: #171717 !important;
  padding: 20px;
  width: 50% !important;
  min-width: 300px;
  margin: 20px auto;
  border: 8px solid #FFF;
}
.mfp-close {
    color: #F00 !important;
    font-size: 64px !important;
}
a.optinfo {
    color: #FFFF00 !important;
}
a.optinfo:active, a.optinfo:focus, a.optinfo:hover {
    color: #FF9900 !important;
}