https://www.lemeravigliedellarte.it/assets/js/button_highlight.js

1var ButtonHighlight = (function(){
2
3    var colorArray = ["#e66f66" , "#e47067" , "#e0736c" , "#db7770" , "#d77b75",  "#d27f79"
4    ];
5    var subscribeButton = "#subscribe_button";
6
7    var index = 0;
8    var size = 12;
9    var goOn = true;
10    var startInterval = function(){
11        setInterval(function(){ changeColor(); } , 200);
12    };
13
14    var changeColor = function(){
15        if(index == colorArray.length - 1){ index = 0;}
16
17        console.log("arrivo");
18        $(subscribeButton).css({ 'border-color' : colorArray[index],'border-width' : "1.5px",'border-radius' : "5px", 'color' : colorArray[colorArray.length - index], "font-size" : size + "px"} );
19        index++;
20
21        if(size == 18){ goOn = false; }
22        if(size == 12){ goOn = true;  }
23
24        size = (goOn) ? size + 1 : size -1;
25    };
26
27    return {
28        init : function(){
29             startInterval();
30        }
31    }
32}());
33
34
35
36$(document).ready(function(){ ButtonHighlight.init(); });