?!new?function(){var?a=this;a.width=750,a.fontSize=100,a.widthProportion=function(){var?b=(document.body&&document.body.clientWidth||document.getElementsByTagName("html")[0].offsetWidth)/a.width;return?b>1?1:b},a.changePage=function(){document.getElementsByTagName("html")[0].setAttribute("style","font-size:"+a.widthProportion()*a.fontSize+"px?!important")},a.changePage(),window.addEventListener("resize",function(){a.changePage()},!1)};


引入這段js，設(shè)計(jì)圖的750px?= 7.5rem