body {
    font-family: Arial, sans-serif;
  }
  .container {
    max-width: 600px;
    margin: 20px auto;
    padding: 0 20px;
  }
  .item {
    display: flex;
    align-items: center;
    margin-bottom: 5px;
  }
  .item input[type="text"] {
    flex: 1;
    margin-right: 10px;
  }
  .item button {
    margin-left: 10px;
    cursor: pointer;
  }