I\'ve been looking at Twitter\'s Bootstrap framework and I\'m really impressed. However, I don\'t understand the thinking behind the way the dropdown navigation menu works.
The design decision was done by the folks at Twitter see http://markdotto.com/2012/02/27/bootstrap-explained-dropdowns/
If you look at the number of people that look for a solution to get hover back (some 1000 positive/ some 700000 fews as of 2017-11):
How to make Twitter Bootstrap menu dropdown on hover rather than click
you can see that the decision is not making everybody happy. Especially if you migrate web pages that have had hover menus for many years it's awkward to be "forced" to a new style by some framework.