Viewport Detector

Viewport detector for bootstrap 3 As you know with the new version of Bootstrap 3 each viewport is represented by a class name respectively are col-lg- , col-md- , col-sm- and col-xs-. I created this little extension to help me switch between different viewports while resizing the browser and decide which content should show in which device. I will add more options to it in the future till then I hope you will find it useful while working with Bootstrap.