Bootstrap Download
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" type="text/css" href="./css/bootstrap.min.css">
<script type="text/javascript" src="./js/jquery-3.2.1.min.js"></script>
<title>千寻网络科技</title>
</head>
<body>
<h1>hello world!</h1>
</body>
</html>