site_8g/src/utils/index.ts

// 设置根节点html的字体大小用于移动端适配使用
export const setHtmlFontSize = () => {
    console.count("setHtmlFontSize");
    (function (doc, win) {
        var htmlDom = doc.getElementsByTagName("html")[0],
            resizeEvt = "orientationchange" in win ? "orientationchange" : "resize",
            recalc = function () {
                requestAnimationFrame(() => {
                    var clientWidth = doc.documentElement.clientWidth || doc.body.clientWidth;
                    if (!clientWidth) return;
                    htmlDom.style.fontSize = clientWidth>=578.88 ? '144px' : 154.5 * (clientWidth / 578.88) + 'px';
                })
            };
        if (!doc.addEventListener) return;
        win.addEventListener(resizeEvt, recalc, false);
        doc.addEventListener('DOMContentLoaded', recalc, false);
        setTimeout(()=>recalc(),1000)
    })(document, window);
};