动态设置缩放比例和html字体大小

 

<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script>
　　　　<!--获取像素比：window.devicePixelRatio
　　　　1 / 像素 = 缩放的比例-->
 　　var initScale = 1 / window.devicePixelRatio; document.write('<meta name="viewport" content="width=device-width,user-scalable=no，initial-scale='+ initScale +',minimum-scale='+ initScale +',maximum-scale='+ initScale +'">'); 
　　var initWidth = window.document.documentElement.clientWidth; document.getElementsByTagName('html')[0].style.fontSize = initWidth / 50 + 'px';
    </script>
    <style>
        body{
            margin: 0;
            overflow: hidden;
        }
        .box{
            width: 10rem;
            height: 10rem;
            margin: 0.33333rem;
            background: pink;
            float: left;
            font-size: 30px;
        }
    </style>
</head>

<body>
    <div class="box">box1</div>
    <div class="box">box2</div>
    <div class="box">box3</div>
    <div class="box">box4</div>
    <div class="box">box5</div>
    <div class="box">box6</div>
</body>

</html>

 

posted @ 2017-06-05 19:20  行动派  阅读(12194)  评论(0)    收藏  举报