<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no" />
<title>副屏GIF</title>
<style>
body{
margin: 0;
margin: 0;
background-color: #000000;
}
.content{
display: flex;
justify-content: center;
align-items: center;
width: 100vw;
height: 100vh;
}
.content img{
max-width: 98%;
max-height: 98%;
}
</style>
</head>
<body>
<div class="content">
<img src="./rouse.gif">
</div>
</body>
</html>