JSFiddle - React, Tailwind, and code Playground by Mike Fitzpatrick June 01, 2014 HTML <p>Regular Font Size</p> <p class="small-text">Small Font size</p> <p class="large-text">Large Text Size</p> <p class="small-text">Small Font size</p> <a href="#" id="fix-text">Fix Small Fonts</a> CSS body { font-size: 12px; } .large-text { font-size: 18px; } .small-text { font-size: 8px; } JavaScript $(function () { $("#fix-text").on("click", function (e) { e.preventDefault(); $("p").each( function () { var $this = $(this); if (parseInt($this.css("fontSize")) < 12) { $this.css({ "font-size": "12px" }); } }); }); });