# Firefox' Responsive Design Viewįirefox has a responsive design view that encourages you to stop thinking in terms of specific devices and instead explore how your design changes at common screen sizes or your own size by dragging the edges. Test your site on browsers running on real devices to be certain everything behaves as expected. Cloud-based emulators let you automate unit tests for your site across different platforms.īrowser emulators are great for testing a site's responsiveness, but they don't emulate differences in API, CSS support, and certain behaviors that you'd see on a mobile browser.Device emulators and simulators let you mimic your development site on a range of devices from your workstation.When you don't have a particular device, or want to do a spot check on something, the best option is to emulate the device right inside your browser.Even though Device Mode can simulate a range of other devices like iPhones, we encourage you to check out other browsers solutions for emulation.
If you have a Mac and want to get serious about iPhone development I suggest you check it out.Your job doesn't end with ensuring your site runs great across Chrome and Android. What about Apple? Apple has released an iPhone Simulator as part of its iPhone Developer SDK tools.What are the dimensions of the viewport in the Simulator? The vertical view dimensions are 320x365 pixels while the horizontal view dimensions are 480x200 pixels.Does TestiPhone zoom in and out? Currently the simulator does not do zooming, although we are working on providing that functionality.You can also turn scrollbars on using the scroll=on URL parameter. In Safari you can easily scroll down using the scroll wheen of your mouse. Also having scrollbars reduces the visible area in the browser which causes issues for some apps. Why are scrollbars turned off by default? By default the iPhone turns off the scrollbars in its Safari browser until you use fingertips to slide the page down.The settings for the iPhone are: Description: iPhone, User Agent: Mozilla/5.0 (iPhone U CPU like Mac OS X en), App Name: AppleWebKit/420+ (KHTML, like Gecko), App Version: Version/3.0, Platform: Mobile/1A542a Safari/419.3. You can easily switch your user agent string. Does TestiPhone set the User agent of the iPhone on request? Unfortunately some apps require that you are using an iPhone by checking the user-agent.Does TestiPhone simulate all the browser plugins of the iPhone? Keep in mind that the iPhone does not currently have Flash, Java and a slew of other plugins that work in PC based browsers.
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