If you never saw someone using a GW2 skill bar ingame from an internet browser, now you have.
To make the web build it took me…. 2secs (finding the target in the platforms selection of the build panel).
Well, that was tough… But it takes a real engine to be able to build for more than 12 platforms without changing a line of code. Do not try this with something else than Unity or you might go well above 2 seconds.