如何在语义界面中制作无边框卡片

<div id="card-container">
  <!-- 卡片内容 -->
</div>

#card-container {
  width: 300px;
  height: 200px;
  background-color: #f2f2f2;
  border: none;
}

<div id="card-container">
  <h2>无边框卡片</h2>
  <p>这是一个示例无边框卡片。</p>
  <button>点击按钮</button>
</div>

#card-container {
  width: 300px;
  height: 200px;
  background-color: #f2f2f2;
  border: none;
  padding: 20px;
}

h2 {
  font-size: 18px;
  color: #333;
}

p {
  font-size: 14px;
  color: #666;
}

button {
  background-color: #007bff;
  color: #fff;
  border: none;
  padding: 10px 20px;
  cursor: pointer;
}

#card-container {
  width: 300px;
  height: 200px;
  background-color: #f2f2f2;
  border: none;
  padding: 20px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  border-radius: 4px;
  transition: box-shadow 0.3s ease;
}

#card-container:hover {
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}