<!DOCTYPE html>
<html>
<head>
<style>
:root { --blue: #1e90ff;
--white: #ffffff;
}
body { background-color: var(--blue);
}
h2 { border-bottom: 2px solid var(--blue);
}
.container { color: var(--blue);
background-color: var(--white);
padding: 15px;
}
button { --button-blue: #0000ff;
background-color: var(--white);
color: var(--button-blue);
border: 1px solid var(--button-blue);
padding: 5px;
}
</style>
</head>
<body>
<h1>新的局部变量</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>