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<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=1.0">
<title>Document</title>
<link rel="stylesheet" href="./main.css">
</head>
<body>
<div id="div0">
<div id="top">
<img id="logo" src="./logo/3.png">
</div>
<div id="main">
<ul>
<li>
<div><img src="./logo/4.png" class="logo"></div>
<div>慕课精品成长课,培养更高思维+技术能力的综合性高端前端人才</div>
<div><img src="./logo/2.jpg" class="shopCar"></div>
</li>
<li>
<div><img src="./logo/4.png" class="logo"></div>
<div>慕课精品成长课,培养更高思维+技术能力的综合性高端前端人才</div>
<div><img src="./logo/2.jpg" class="shopCar"></div>
</li>
<li>
<div><img src="./logo/4.png" class="logo"></div>
<div>慕课精品成长课,培养更高思维+技术能力的综合性高端前端人才</div>
<div><img src="./logo/2.jpg" class="shopCar"></div>
</li>
<li>
<div><img src="./logo/4.png" class="logo"></div>
<div>慕课精品成长课,培养更高思维+技术能力的综合性高端前端人才</div>
<div><img src="./logo/2.jpg" class="shopCar"></div>
</li>
<li>
<div><img src="./logo/4.png" class="logo"></div>
<div>慕课精品成长课,培养更高思维+技术能力的综合性高端前端人才</div>
<div><img src="./logo/2.jpg" class="shopCar"></div>
</li>
<li>
<div><img src="./logo/4.png" class="logo"></div>
<div>慕课精品成长课,培养更高思维+技术能力的综合性高端前端人才</div>
<div><img src="./logo/2.jpg" class="shopCar"></div>
</li>
</ul>
</div>
<div id="bottom">
<div><img src="./logo/1.png" alt=""></div>
<div><img src="./logo/2.jpg" alt=""></div>
</div>
</div>
</body>
<script>
var c = () => {
// 获取当前设备宽度
let w = document.documentElement.clientWidth
// 设置字号,默认为字号为20, 以 320 的宽度作为设备依据(可选),如果计算出当前设备的字号大于40,就以40字号显示
let n = (20*(w / 320 ) > 40 ? 40 + "px" : 20*(w / 320 ) + "px")
// 当计算好后,赋值给 fontSize
document.documentElement.style.fontSize = n
}
// 设置为初始化的效果
window.addEventListener("load", c) // load 是重新加载计算
// 当屏幕尺寸改变后的效果
window.addEventListener("resize", c) // resize 属性规定是否可由用户调整元素的尺寸大小
</script>
</html>