@-moz-keyframes blink {
  from,
  to {
    border-left: 1px solid transparent;
  }
  50% {
    border-left: 1px solid #000;
  }
}
@-webkit-keyframes blink {
  from,
  to {
    border-left: 1px solid transparent;
  }
  50% {
    border-left: 1px solid #000;
  }
}
@keyframes blink {
  from,
  to {
    border-left: 1px solid transparent;
  }
  50% {
    border-left: 1px solid #000;
  }
}