html - Why an element doesn't move up in FF but does in Chrome? How to solve it in FF? -


i experience strange behavior in ff: element doesn't allow move other element. works fine in chrome doesn't work in ff.

enter image description here

please see jsfiddle in ff http://jsfiddle.net/m74f9/4/.

to see issue please find in console <div class="layout-content"> element. , try set margin-top negative value -50px. set value arrows, let see movement of div. div moves word "account" stops , doesn't want move div. seems nav element of bootstrap doesn't allow move it.

why happens? styles stop "account" word? why happens in ff , doesn't happen in chrome? how solve in ff?


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