div.gigya-screen-loader {
  position: fixed;
  left: 0px;
  top: 0px;
  width: 100% !important;
  height: 100% !important;
  min-height: 32px;
  min-width: 32px;
  z-index: 1000000003;
  background: transparent
    url(https://cdns3.gigya.com/gs/i/accounts/bigLoader.gif) no-repeat center
    center;
}