button.gpspol-install-btn,
.gpspol-install-box button.gpspol-install-btn,
.gpspol-install-btn {
  background: linear-gradient(180deg, #ffffff 0%, #eef1f4 28%, #c8ced6 62%, #9fa8b2 100%) !important;
  color: #102033 !important;
  -webkit-text-fill-color: #102033 !important;
  border: 1px solid #b8c0ca !important;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.95),
    inset 0 -1px 0 rgba(88,96,105,.22),
    0 14px 34px rgba(15,23,42,.18) !important;
  text-shadow: 0 1px 0 rgba(255,255,255,.75) !important;
}

button.gpspol-install-btn:hover,
.gpspol-install-box button.gpspol-install-btn:hover {
  background: linear-gradient(180deg, #ffffff 0%, #f5f7f9 30%, #d4dae1 65%, #aab3bd 100%) !important;
}