//等比缩放
function fontSize(){
    var size;var a=window.innerWidth;if(a>992){size=Math.round(a/19.2)}else if(a<=992){size=Math.round(a/7.5);if(size>65){size=65}}else{size=100}$('html').css({'font-size':size+'px'});
} 
//正常缩放
function fontSize(){
var size;var a = window.innerWidth;
if (a <= 1600 && a > 992) {size = Math.round(a / 16)} else if (a <= 992) {size = Math.round(a/7.5);if (size > 65) {size = 65}} else {size = 100}$('html').css({'font-size': size + 'px'})  
}
//ie添加class
if(ieVer&&10>=ieVer||isIE11){$("html").addClass('ie11');}