While there are many factors that determine the difference between a successful web application and an unsuccessful one, the prominent among all is the interface. How intuitive your website is, the image layout, responsiveness, and form factors – all of these are directly related to front-end development of your web application. Front end is as much art as it is science. It is where the code meets your user base and always remains as a keystone character that determines whether your site will be liked by the masses or will dissolve into oblivion.