    font-style: italic;
    }

    @media (max-width: 768px) {
      body {
        padding: 30px;
      }

      .option-title {
        margin-right: 0;
        margin-bottom: 10px;
      }

      .option-container {
        flex-direction: column;
      }
    }
  </style>
</head>
<body>
  <div class="container">
    <h1><code>font-style</code></h1>
    <div class="option-container">
      <span class="option-title"><code>normal</code></span>
      <span class="option normal">yuanfei</span>
    </div>
   