.ajax-throbber {
   width: 40px;
   height: 40px;
   /*position: relative;*/
 }

/* Override core throbber */
.ajax-progress.ajax-progress-fullscreen {
  background-color: transparent;
  background-image: none;
  z-index: 11000;
  position: absolute;
  height: 2em;
  width: 2em;
  overflow: show;
  margin: auto;
  transform: translateX(-50%);
  left: 0;
  bottom: -45px;
  right: 0;
}