引导程序4导航栏边框底色

Question

A lot of searching, but without result. How to change the border-bottom color of the navbar in Bootstrap 4

<nav class="navbar fixed-top navbar-expand-lg navbar-dark bg-dark justify-content-center">
....
</nav>

Answer 1

Try This

 <style>
        .navbar
        {
            border-bottom:5px solid #000;
        }
      </style>

In the place of #000 put your colour