html运行实例（css3_var_old）-搜寻教程库

代码示例：（标识：css3_var_old）

<!DOCTYPE html>
<html>
<head>
<style>
body {
  background-color: #1e90ff;
}

h2 {
  border-bottom: 2px solid #1e90ff;
}

.container {
  color: #1e90ff;
  background-color: #ffffff;
  padding: 15px;
}

button {
  background-color: #ffffff;
  color: #1e90ff;
  border: 1px solid #1e90ff;
  padding: 5px;
}
</style>
</head>
<body>

<h1>传统方式</h1>

<div class="container">
  <h2>Welcome to Shanghai!</h2>
  <p>Shanghai is one of the four direct-administered municipalities of the People's Republic of China.</p>
  <p>Shanghai is one of the four direct-administered municipalities of the People's Republic of China.</p>
  <p>
    <button>Yes</button>
    <button>No</button>
  </p>
</div>

</body>
</html>