https://retailmerchantservices.co.uk/_inc/global_assets/jquery/flowtype.js

1/*
2* FlowType.JS v1.1
3* Copyright 2013-2014, Simple Focus http://simplefocus.com/
4*
5* FlowType.JS by Simple Focus (http://simplefocus.com/)
6* is licensed under the MIT License. Read a copy of the
7* license in the LICENSE.txt file or at
8* http://choosealicense.com/licenses/mit
9*
10* Thanks to Giovanni Difeterici (http://www.gdifeterici.com/)
11*/
12
13(function($) {
14   $.fn.flowtype = function(options) {
15
16// Establish default settings/variables
17// ====================================
18      var settings = $.extend({
19         maximum   : 9999,
20         minimum   : 1,
21         maxFont   : 9999,
22         minFont   : 1,
23         fontRatio : 35
24      }, options),
25
26// Do the magic math
27// =================
28      changes = function(el) {
29
30         var $el = $(el),
31            elw = $el.width(),
32            width = elw > settings.maximum ? settings.maximum : elw < settings.minimum ? settings.minimum : elw,
33            fontBase = width / settings.fontRatio,
34            fontSize = fontBase > settings.maxFont ? settings.maxFont : fontBase < settings.minFont ? settings.minFont : fontBase;
35//        console.log( fontSize + " | " + width)
36         $el.css('font-size', fontSize + 'px');
37      };
38
39// Make the magic visible
40// ======================
41      return this.each(function() {
42      // Context for resize callback
43         var that = this;
44      // Make changes upon resize
45         $(window).resize(function(){changes(that);});
46      // Set changes on load
47         changes(this);
48      });
49   };
50}(jQuery));