img {
  height: 80%;
  width: 80%;
  }
  
body {
  background-color: black;
  color: yellow;
  }

h1 {
  text-align: center;
  }
  
button {
  background-color: yellow;
  color: black;
  }
  
div {
  margin: auto;
  width: 80%;
  padding: 10px;
}

#red {
  color: red;
}