oldhaven/app/assets/stylesheets/common.scss

@import "opacity";

.fullscreen {
  position: fixed;
  z-index: 999999;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #ffffff;
  @include opacity(0.9);
  .inner {
    position: relative;
    top: 50%;
    left: 50%;
    margin: -32px 0 0 -32px;
  }
}