body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column; /* Ensure vertical stacking of elements */
  min-height: 100vh;
  background-color: #f0f0f0;
}

.container {
  text-align: center;
  background-color: #fff;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  flex-grow: 1; /* Allow the container to grow to fill the available space */
}

#info {
  margin-bottom: 20px;
}

#collatzForm {
  display: flex;
  flex-direction: column;
  align-items: center;
}

label {
  margin-bottom: 5px;
}

button {
  margin-top: 10px;
  padding: 10px 20px;
  background-color: #4caf50;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

#result {
  margin-top: 20px;
}