What is the best way to create a border for the active class nav-item in Bootstrap 4?

I am facing an issue with changing styles in the nav-item. I have created a separate style sheet and added the necessary code to make the changes. Surprisingly, the changes are reflecting well in Internet Explorer but not in Firefox. Can anyone guide me on how to modify the nav-link active?

Specifically, I would like to add a border-bottom when the nav is active.

<div class="container">
    <nav class="navbar navbar-expand-lg navbar-light py-md-5">
        <a class="navbar-brand" href="#">Navbar</a>

        <div class="justify-content-end  collapse navbar-collapse" id="navbarNavAltMarkup">
            <div class="navbar-nav">
                <a class="nav-item nav-link active" href="#">Home <span class="sr-only">(current)</span></a>
                <a class="nav-item nav-link" href="#">ABOUT US</a>
                <a class="nav-item nav-link" href="#">SERVICES</a>
                <a class="nav-item nav-link" href="#">TEAM</a>
                <a class="nav-item nav-link" href="#">CLIENTS</a>
                <a class="nav-item nav-link" href="#">CONTACT</a>
            </div>
        </div>
    </nav>
</div>

cssbootstrap-4

Answer №1

make sure to include the following CSS code in your custom stylesheet

.nav-item.active
{
  border-bottom:2px solid #f00;
}


.nav-item.active
{
  border-bottom:2px solid #f00;
}
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>
  
  <nav class="navbar navbar-expand-lg navbar-light py-md-5">
  <a class="navbar-brand" href="#">Navbar</a>
  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#collapsibleNavbar">
    <span class="navbar-toggler-icon"></span>
  </button>
  <div class="justify-content-end  collapse navbar-collapse" id="collapsibleNavbar">
    <ul class="navbar-nav">
      <li class="nav-item active">
        <a class="nav-link" href="#">Home </a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">ABOUT US</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">SERVICES</a>
      </li>  
       <li class="nav-item">
        <a class="nav-link" href="#">TEAM</a>
      </li>  
       <li class="nav-item">
        <a class="nav-link" href="#">CLIENTS</a>
      </li>  
       <li class="nav-item">
        <a class="nav-link" href="#">CONTACT</a>
      </li>  
    </ul>
  </div>  
</nav>

Answer №2

$('.nav-link').click(function() {
  $('.nav-link').removeClass("active");
  $('li.nav-item.active').removeClass("active");
  $(this).addClass("active");
});
.active {
  border-bottom: 2px solid #f00;
}
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>

<nav class="navbar navbar-expand-lg navbar-light py-md-5">
  <a class="navbar-brand" href="#">Navbar</a>
  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#collapsibleNavbar">
    <span class="navbar-toggler-icon"></span>
  </button>
  <div class="justify-content-end  collapse navbar-collapse" id="collapsibleNavbar">
    <ul class="navbar-nav">
      <li class="nav-item active">
        <a class="nav-link" href="#">Home </a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">ABOUT US</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">SERVICES</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">TEAM</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">CLIENTS</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">CONTACT</a>
      </li>
    </ul>
  </div>
</nav>

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