#loader_overlay{
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background: rgb(128, 121, 121);
  opacity: .7;
  filter: alpha(opacity = 70);
  z-index: 20000;
  display: none;
}

.loader_content{
  margin: 20% 0 0 45%;
  top: 50%;
    left: 50%;
  font: bold 16px;
  color: white;
}

.Center-Container {
  position: relative;
  color: #000;
}

.Absolute-Center {
  width: 15%;
  height: 30%;
  overflow: auto;
  margin: auto;
  position: absolute;
  top: 0; left: 0; bottom: 0; right: 0;
}

.Absolute-Center.is-Fixed {
  position: fixed;
  z-index: 10000;
}