body {
	background-color: #000;
	animation: changeColor 10s infinite;
  }
  
  @keyframes changeColor {
	0% { background-color: #ff0000; }
	25% { background-color: #00ff00; }
	50% { background-color: #0000ff; }
	75% { background-color: #ffff00; }
	100% { background-color: #ff00ff; }
  }
  
  .container {
	margin: 20px auto;
	max-width: 600px;
	padding: 20px;
	background-color: rgba(255, 255, 255, 0.9);
	border-radius: 10px;
	box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
  }
  
  h1 {
	text-align: center;
	color: #333;
  }
  
  textarea {
	width: 100%;
	height: 150px;
	margin-bottom: 20px;
	padding: 10px;
	font-size: 16px;
	border-radius: 5px;
	border: 1px solid #ccc;
	resize: none;
  }
  
  button {
	display: block;
	width: 100%;
	padding: 15px;
	background-color: #ffcc00;
	color: #fff;
	border: none;
	border-radius: 5px;
	font-size: 18px;
	cursor: pointer;
	transition: background-color 0.3s;
  }
  
  button:hover {
	background-color: #ff9900;
  }