Bootstrap 3 Nav-bar change color cause showing a white border or white line

Question

Base on this fiddle. how do i remove the white line.. I tried to change the color of the nav-bar but there is a white line when its on mobile

Answer 1

Nice found the issue

.navbar-collapse{
border-top:0px !important;
 box-shadow:none;
}

after animation it adds a border top

wait ill give a fiddle

fiddle