List all font styles being used on the page

fonts.js

var ret={};
$('*').each(function () {
    var str = $(this).css('font-family');
    str = str  + ':' + $(this).css('font-weight');
    str = str + ':' + $(this).css('font-style');
    if (ret[str] ) {
      ret[str] = ret[str] + 1;
    } else {
      ret[str] = 1;
    }

});
console.log(ret);