Opera Mobile
The [/w/index.php?title=User_talk:Armondikov&offset=20130224191842&lqt_mustshow=14455 highlighted comment] was created in this revision.
Fantastically useful and occasionally hilarious, if your idea of humour includes jokes expressed entirely in failed CSS.
It was really useful to use when I was building a responsive layout, as it does add a few bells and whistles to check if something will work on a mobile. But if you just resize the browser window (and sometimes, zoom) it should also show the responsiveness, and that works for layout. When I saw it change just on resizing the window I had to boot up the emulator as a sanity check, and yes it really does do that. I mean, wow.
Yep, yep! I saw it do that with EvoLve (which is responsive, it just gets it stupidly wrong and that header fouls up everything) and with Twenty Twelve. The quick way is just to switch from portrait to landscape and watch it reflow. I need to learn how to do that to 2012.