<!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, height=device-height, initial-scale=1, user-scalable=no">
    <meta name="description" content="Fair sample application.">
    <title>Hello Fair</title>

    <link rel="stylesheet" href="device.css">
</head>
<body>
<!--https://zhuanlan.zhihu.com/p/78689523-->
<div class="mobileContainer">
    <div class='mobile_preview_h