<script type="text/javascript">
(function () {
reset();
window.addEventListener("orientationchange", function () {
reset();
});
window.addEventListener("resize", function () {
reset();
});
function reset () {
var width = document.documentElement.clientWidth;
document.querySelector("html").style.fontSize = width / 10 + "px";
}
})();
</script>
方法二:
(function(doc, win) {
var docEl = doc.documentElement,
resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize',
recalc = function() {
var clientWidth = docEl.clientWidth;
if (!clientWidth) return;
docEl.style.fontSize = 50 * (clientWidth / 375) + 'px';
};
if (!doc.addEventListener) return;
win.addEventListener(resizeEvt, recalc, false);
doc.addEventListener('DOMContentLoaded', recalc, false);
})(document, window)
设置完根节点后直接使用rem