This is just a little script I needed to use to increase text size conditionally. It only increases text below a minimum size and leaves everything else.

(function () {
    var minFontSize = function () {
        $(".content-zone *").each(function () {
            var $this = $(this);
            if (parseInt($this.css("fontSize"), 10) < 16) {
                $this.css({ "font-size": "16px" });
            }
        });
    };

    $(document).ready(minFontSize);
    $(document).ajaxComplete(minFontSize);
})();

Before Image

After Image

You can see that the span element is the same size before and after, but all the tiny text has been increased to the minimum size.