<script> (function () {function w() {var all = document.documentElement; //获取html元素var test = all.getBoundingClientRect().width; //获取当前设备的宽度、console.log('宽度', test) if (test < 1000) {document.querySelector('.aaa').style.display = 'none'document.querySelector('.bbb').style.display = 'block'} else {document.querySelector('.aaa').style.display = 'block'document.querySelector('.bbb').style.display = 'none' } rem = test / 18.75;all.style.fontSize = rem + 'px'}w();window.addEventListener("resize", function () {w()}, false)})();</script>
<script>//在iphone6 375宽度中 html是以20px作为基本单位(function () {function w() {var all = document.documentElement; //获取html元素var test = all.getBoundingClientRect().width; //获取当前设备的宽度、console.log(123, test)if (test > 750) {test = 750;}rem = test / 18.75;console.log(rem)all.style.fontSize = rem + 'px'}w();window.addEventListener("resize", function () {w()}, false)})();</script>
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