hello, using your shortcode html text i can create the same buttons, but if i want to change the icon to fa-amazon it deosnt show up. there is no documentation on the buttons that come with your theme to create these – fa awesome icons does have a amazon button http://3curiousmonkeys.webcandywebsites.com/
Please download the attached file bellow -> extract it.
1, copy font-awesome.css file to \Root/wp-content/themes/kelex/css/ folder (It will override the older)
2, copy fontawesome folder to \Root/wp-content/themes/kelex/fonts/ folder (it will override the older too)
Now please check your site you will see the icons.