.a_absolute_all {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}

.a_sr_only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}