fontsize.js 371 字节
!function (a) {
    function b() {
        var b = a.document, c = b.documentElement, d = c.getBoundingClientRect().width;
        document.documentElement.style.fontSize = 100 * (d / 750) + "px"
    }

    window.addEventListener("DOMContentLoaded", function () {
        b()
    }, !1), window.addEventListener("resize", function () {
        b()
    }), b()
}(window);