> Now you need to have 3 files open in your editor Are you saying that isn't already the case? Do you inline all your CSS and JS directly? Because that'd be su

> Now you need to have 3 files open in your editor Are you saying that isn't already the case? Do you inline all your CSS and JS directly? Because that'd be super weird. > Wouldn't this also detect non-disappearing transitions (say, an element expanding or changing color)? The event comes with information about which class the transition was for. So: sure, but if you have lots of different transitions we're no longer dealing with simple code that we can write simple "vanilla vs. jquery vs. your lib" code for?