body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    animation: fadeInAnimation ease 3s;
    animation-iteration-count: 1;
    animation-fill-mode: forwards;
}

@keyframes fadeInAnimation {
  0% {
      opacity: 0;
  }
  100% {
      opacity: 1;
  }
}

/* Add a black background color to the top navigation */
.topnav {
    background-color: black;
    overflow: hidden;
  }
  
  /* Style the links inside the navigation bar */
  .topnav a {
    float: right;
    color: #f2f2f2;
    text-align: center;
    padding: 14px 16px;
    margin-top: 14px;
    text-decoration: none;
    font-size: 17px;
    transition-duration: 0.4s;
  }
  
  /* Change the color of links on hover */
  .topnav a:hover {
    color: gray;
  }
  
  /* Add a color to the active/current link */
  .topnav a.active {
    color: gray;
  }

  .logo {
      float: left;
      padding: 14px 16px;
  }

  .logo-text {
      float: left;
      font-size: 25px;
      color: #f2f2f2;
      padding: 10px 16px;
}

.responsive {
    width: 100%;
    height: 100%;
  }

  .footer {
    position: relative;
    background-color: black;
    padding: 50px;
    text-align: center;
  }

  .footer a {
    user-select: none;
  }
  
  .chinese_text {
    font-size: 3vw;
    color: red;
    letter-spacing: 10px;
    font-family: "KaiTi";
  }
  
  .eng_text {
    font-size: 2.5vw;
    color: white;
    font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
  }
  
  .first {
    color: white;
    text-decoration: none;
  }
  
  .second {
    color: white;
    text-decoration: none;
    padding-left: 10px;
  }