移动端响应式js代码

(function() {
    var b = document.documentElement,
            a = function() {
                var a = b.getBoundingClientRect().width;
                b.style.fontSize = .0625 * (640 <= a ? 640 : a) + "px"
            },
            c = null;
    window.addEventListener("resize",
            function() {
                clearTimeout(c);
                c = setTimeout(a, 300)
            });
    a()
})();

移动端响应式js代码

原文：http://www.cnblogs.com/anyaran/p/4651542.html