body {
  margin: 0;
  padding: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #6a0dad, #8a2be2, #b57edc);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: white;
}

#h {
  padding: 20px 40px;
  font-size: 20px;
  background: linear-gradient(135deg, #a64ac9, #c471ed);
  border: none;
  border-radius: 10px;
  cursor: pointer;
  box-shadow: 0 5px 15px rgba(0,0,0,0.3);
  transition: 0.3s ease;
}

#5:hover {
  background: linear-gradient(135deg, #8e44ad, #a569bd);
  transform: scale(1.05);
}

#footer {
  position: absolute;
  bottom: 10px;
  left: 10px;
  font-size: 14px;
  opacity: 0.7;
}