.session_inactivity_overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #000000;
  z-index: 1234;
  opacity: 0.75;
  -moz-opacity: 0.75;
  filter: alpha(opacity=75);
}

.session_inactivity_modal {
  position: fixed;
  top: 25%;
  left: 25%;
  width: 50%;
  padding: 16px;
  background: #ffffff;
  color: #333;
  z-index: 1235;
  overflow: auto;
  text-align: center;
}