body {
 font-family: Arial, sans-serif;
 margin:20px;
 background-color: #f4f4f4;
}

.container {
 max-width:600px;
 margin: auto;
 padding:20px;
 background: #fff;
 border-radius:5px;
 box-shadow:0010px rgba(0,0,0,0.1);
}

h1 {
 color: #333;
}

.toggle-text {
 color: #007bff;
 cursor: pointer;
 text-decoration: underline;
}

.toggle-text:hover {
 color: #0056b3;
}

.content {
 display: none; /* 初始设置为隐藏 */
 margin-top:10px;
 padding:10px;
 background: width;
 border:1px solid #006bff;
 border-radius:5px;
}