100IT

solved

solved, moved variable outside function to make it global and added a onready jquery function:

var startstop;

(function ($) {
    jQuery(document).ready(function () {

rest of code....

Actually; the javascript and not the css is missing:

../wp-content/plugins/shortcodes-ultimate/assets/js/other-shortcodes.js?ver=4.7.2

when I look at the page source of a portfolio – project page