#sbox-window {
  position: fixed;
  left: 10vw !important;
  top: 7vw !important;
  width: 80vw !important;
  height: 80vh !important;
}
#sbox-window iframe {
  width: 100% !important;
  height: calc(80vh - 20px) !important;
}

@media screen and (min-width: 1400px) {
  #sbox-window {
    left: calc(50vw - 555px) !important;
    max-width: 1110px;
  }
}