适配移动

小米适配js ///rem设置大小

　　<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=0">    <!-- meta(name="full-screen", content="yes")-->    <meta name="imagemode" content="force">    <meta name="apple-mobile-web-app-capable" content="yes">    <meta name="apple-mobile-web-app-status-bar-style" content="black">    <meta name="format-detection" content="telephone=no">

<script>
        !function (n) {
        var e = n.document,
            t = e.documentElement,
            i = 640,
            d = i / 100,
            o = "orientationchange" in n ? "orientationchange" : "resize",
            a = function () {
                var n = t.clientWidth || 320;
                n > 640 && (n = 640), t.style.fontSize = n / d + "px"
            };
        e.addEventListener && (n.addEventListener(o, a, !1), e.addEventListener("DOMContentLoaded", a, !1))
    }(window);
</script>