body {
  margin: 0;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background-image: url('hehe.png');
  font-family: TimesNewRoman, "Times New Roman", Times, Baskerville, Georgia, serif;
}

.letter-box {
  width: 800px;
  max-width: 90%;
  height: 600px;
  border: 2px solid #ccc;
  border-radius: 10px;
  box-shadow: 0 6px 12px rgba(0,0,0,0.2);
  padding: 20px;
  overflow-y: auto;   /* enables scrolling */
  line-height: 1.6;
  background: #f5f5dc;

  opacity: 0;
  transform: translateY(40px);
  animation: floatIn 1s ease forwards;
}

.scroll-text h1 {
  text-align: center;
  font-family: Georgia, serif;
  font-size: 2rem;
  margin-bottom: 15px;
  color: #333;
}

.scroll-text p {
  text-align: justify;
  font-size: 1.2rem;
  color: #444;
  margin-bottom: 20px;
}


/* Keyframes for float-in */
@keyframes floatIn {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}