Performance issue due to css

[VesterDe]

Wanted to post this here for visibility, we were seeing a big slowdown our app (that does a lot of heavy DOM operations) after including driver.js' css file.

Turned out this:
https://github.com/kamranahmedse/driver.js/blob/master/src/driver.css#L139-L142

Can have a big impact since it can be a very hungry selector.

We remedied the situation by taking it out manually and core functionality still works without any issues. Hoping this helps someone in the future.