body {
  margin: 0 0;
  font-family: Arial, Helvetica, sans-serif;
  background-color: #f0f0f0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

#hidden-message {
  font-size: 24px;
  color: black;
}

#message-container {
  margin: 0;
  background-color: grey;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 800px;
  height: 200px;
}

img {
  width: 800px;
  height: 100%;
}

.message {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.message > p {
  font-size: 20px;
  color: black;
  width: 600px;
}

.message--hidden {
  display: none;
}