body {
	font-family: Arial, sans-serif;
	margin: 0;
	padding: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	height: 100vh;
	background-color: #f4f4f4;
  }
  
  .todo-container {
	text-align: center;
	background-color: #fff;
	padding: 20px;
	border-radius: 8px;
	box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  }
  
  ul {
	list-style-type: none;
	padding: 0;
  }
  
  li {
	margin: 10px 0;
	padding: 8px;
	border: 1px solid #ddd;
	border-radius: 4px;
	cursor: pointer;
  }
  
  .completed {
	text-decoration: line-through;
	color: #999;
  }
  