Giới thiệu
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<style>
.name {
color: red;
font-size: 24px;
font-weight: bold;
}
</style>
</head>
<body>
tuananh
</body> </html>