body {
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', Arial, sans-serif;
    background-image: linear-gradient(rgba(0,0,0,0.6),rgba(0,0,0,0.6)),url("https://www.zipangcasino.com/ja/inline-images/iStock-672556284.jpg");
    background-repeat:no-repeat;
    background-size:cover;
  height:100vh;
}

.container {
  transform:translateY(50%);
  font-size: 25px;
  font-weight: bold;
  color: white;
  text-align: center;
}

h1 {
    color: goldenrod;
    font-size: 5rem
}

#message-el {
    font-style: italic;
}

button {
    color: #016f32;
    width: 150px;
    background: goldenrod;
    padding-top: 5px;
    padding-bottom: 5px;
    font-weight: bold;
    border: none;
    border-radius: 2px;
    margin-bottom: 2px;
    margin-top: 2px;
}