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>

 


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