#flipbook {
  width: 800px;
  height: 600px;
  margin: auto;
  position: relative;
}

.page {
  width: 100%;
  height: 100%;
  background: white;
  border: 1px solid #ccc;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 20px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  position: relative;
}