1. 程式人生 > >css和js設定rem

css和js設定rem

(function() { var newRem = function() { var html = document.documentElement; var ClientWidth = html.getBoundingClientRect().width; if( ClientWidth <= 640){ html.style.fontSize = ClientWidth / 3.6 + 'px'; }else{ html.style.fontSize = 100px; } };
window.addEventListener('resize', newRem, false); newRem(); })