1.設(shè)置 不縮放
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no,viewport-fit=cover">
2.引入js代碼,自動(dòng)計(jì)算
在head引入 js代碼,放在meta下,一定要在rem的css文件上
<script>!function(e,t){var n=t.documentElement,d=e.devicePixelRatio||1;function i(){var e=n.clientWidth/3.75;n.style.fontSize=e+"px"}if(function e(){t.body?t.body.style.fontSize="16px":t.addEventListener("DOMContentLoaded",e)}(),i(),e.addEventListener("resize",i),e.addEventListener("pageshow",function(e){e.persisted&&i()}),2<=d){var o=t.createElement("body"),a=t.createElement("div");a.style.border=".5px solid transparent",o.appendChild(a),n.appendChild(o),1===a.offsetHeight&&n.classList.add("hairlines"),n.removeChild(o)}}(window,document)</script>
在代碼中,設(shè)計(jì)圖以iphone6,
2倍放大 7501334 那么 100px轉(zhuǎn)換過來就是 100/100/2 = 0.5rem
1倍大小 375667 那么 100px轉(zhuǎn)換過來就是 100/100 = 1rem
