html,
body,
#root {
  height: 100%;
  overflow: hidden;
}

body {
  margin: 0;
  padding: 0;
  font-family: sans-serif;
}
.new-message {
  animation: fadeIn 2s;
}

@keyframes fadeIn {
  0% {
    opacity: 0;
  }
  20% {
    opacity: 1;
  }
  40% {
    opacity: 0;
  }
  60% {
    opacity: 1;
  }
  80% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}