Instructor: Desktop browsers have great facilities on offer for us to develop Web apps for mobile devices. Let's take a look at what Chrome Dev Tools has to offer. We're going to open this index.html file. Let's inspect the page.
When we use the device toolbar, we can emulate devices inside the browser. Currently I'm emulating an iPhone 5, but I have many more to choose from. I can adjust the scale. All the resources that available to us when we debug desktop applications are still available to us now.