html - Bootstrap carousel moves down when in mobile mode when i press the toggle navbar -

in mobile view, when navbar collapses , press on toggle, navbar behaves should carousel moves down along it. there 70px gap between navbar , carousel, used fix adding negative margin-top on carousel goes force, how do naturally?

thank you!

you can make position of .carousel absolute , tweak top value:

.carousel {     position: absolute;     top: 50px; } 

you can make top of .navbar-default 0 or doing this:

.navbar-default {     top: 0; }