移动端速查
柠栀 2020/8/31 移动端
# 移动端速查
# 🐂第一部分：HTML5混生开发
# 1.移动端适配方案（rem）
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<style>
* {
padding: 0;
margin: 0;
}
html,body {
width: 100%;
height: 100%;
}
.rem-test {
background: blue;
width: 100%;
height: 100%;
}
</style>
<body>
<div class="rem-test"></div>
<script>
!(function(win, doc) {
var htmlDom = doc.getElementsByTagName('html')[0];
var resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize';
var recalc = function() {
var htmlWidth = doc.documentElement.clientWidth || doc.body.clientWidth;
htmlDom.style.fontSize = htmlWidth / 10 + 'px';
};
if (!doc.addEventListener) return;
win.addEventListener(resizeEvt, recalc, false);
doc.addEventListener('DOMContentLoaded', recalc, false);
}(window, document));
</script>
</body>
</html>
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