![21 Great Tools for Responsive Web Design](https://i1.wp.com/www.instantshift.com/assets/uploads/2014/12/responsive-web-design-tools-150x150.jpg)
As web designer, we knows that responsive web design had come to stay. You’ve taken your time to build a very beautiful and robust website, with considerable number of traffic to your site from search engines. Then, you come to the reality of devices. Which device will be used to...