body {
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

#caption {
  color: white;
  background-color: rgba(0, 0, 0, 0.8);
  width: 350px;
  height: 150px;
  padding: 50px;
  display: block;
  position: absolute;
}

#success {
  color: white;
  background-color: rgba(255, 0, 0, 0.5);
  width: 350px;
  height: 120;
  padding: 50px;
  display: none;
  position: absolute;
  text-align: center;
  top: 120px;
  font-size: 2em;
}

#status {
  color: white;
  background-color: rgba(0, 0, 0, 0.8);
  width: 100px;
  height: 30px;
  display: flex;
  justify-content: center;
  align-items: center;
  position: fixed;
  left: 0px;
  top: 0px;
}