.form-response {
  width: auto;
  margin: 0;
  font-size: 1rem;
  position: relative;
  z-index: 5;
  left:-7rem;
}
.form-response-active {
  animation: response-reveal 5s;
}

@keyframes response-reveal {
  0% {opacity:0}
  1% {left:-7rem; opacity:100%}
  20% {left:0}
  80% {left:0}
  99% {left:-7rem; opacity:100%}
  100% {opacity:0}
}