Differences in Bootstrap fixed-top behavior on desktop vs. mobile devices

When comparing the behavior of a fixed-top navbar between mobile and desktop views, I encountered an issue. The code I am using was initially sourced from https://getbootstrap.com/docs/4.0/examples/navbar-top-fixed/. In desktop view, the fixed navbar is responsive and scrolls along any part of the screen when horizontally scrolled, even with a 300px width. However, in the mobile view (tested on Chrome and Samsung S5), the fixed behavior does not work the same way. It remains static in its original position and does not scroll horizontally. Is there a method to make the navbar behave consistently between mobile and PC views?


<!doctype html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
    <meta name="description" content="">
    <meta name="author" content="">
    <link rel="icon" href="/docs/4.0/assets/img/favicons/favicon.ico">

    <title>Fixed top navbar example for Bootstrap</title>

    <link rel="canonical" href="https://getbootstrap.com/docs/4.0/examples/navbar-top-fixed/">

    <!-- Bootstrap core CSS -->
    <link href="https://getbootstrap.com/docs/4.0/dist/css/bootstrap.min.css" rel="stylesheet">

  </head>

  <body>

    <nav class="navbar navbar-dark fixed-top bg-dark" style="width: 320px">
      <a class="navbar-brand" href="#">Fixed navbar</a>
      <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarCollapse" aria-controls="navbarCollapse" aria-expanded="false" aria-label="Toggle navigation">
        <span class="navbar-toggler-icon"></span>
      </button>
      <div class="collapse navbar-collapse" id="navbarCollapse">
        <ul class="navbar-nav mr-auto">
          <li class="nav-item active">
            <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
          </li>
          <li class="nav-item">
            <a class="nav-link" href="#">Link</a>
          </li>
          <li class="nav-item">
            <a class="nav-link disabled" href="#">Disabled</a>
          </li>
        </ul>
        <form class="form-inline mt-2 mt-md-0">
          <input class="form-control mr-sm-2" type="text" placeholder="Search" aria-label="Search">
          <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
        </form>
      </div>
    </nav>

    <main role="main" class="container" style="width: 3000px; max-width: 3000px">
      <div class="jumbotron">
        <h1>Navbar example</h1>
        <p class="lead">This example is a quick exercise to illustrate how fixed-top navbar works. As you scroll, it will remain fixed to the top of your browser's viewport.</p>
        <a class="btn btn-lg btn-primary" href="../../components/navbar/" role="button">View navbar docs &raquo;</a>
      </div>
    </main>

    <!-- Bootstrap core JavaScript
    ================================================== -->
    <!-- Placed at the end of the document so the pages load faster -->
    <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
    <script>window.jQuery || document.write('<script src="../../assets/js/vendor/jquery-slim.min.js"><\/script>')</script>
    <script src="../../assets/js/vendor/popper.min.js"></script>
    <script src="../../dist/js/bootstrap.min.js"></script>
  </body>
</html>

Answer №1

Alright, I've got the solution to your issue. It seems that the inner div exceeds the width of the body, causing a scrollbar to appear on the entire body when using position fixed.

To resolve this and ensure it works smoothly on both mobile and desktop devices, simply adjust the width property as shown below:

<!doctype html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
    <meta name="description" content="">
    <meta name="author" content="">
    <link rel="icon" href="/docs/4.0/assets/img/favicons/favicon.ico">

    <title>Fixed top navbar example for Bootstrap</title>

    <link rel="canonical" href="https://getbootstrap.com/docs/4.0/examples/navbar-top-fixed/">

    <!-- Bootstrap core CSS -->
    <link href="https://getbootstrap.com/docs/4.0/dist/css/bootstrap.min.css" rel="stylesheet">

  </head>

  <body>

    <nav class="navbar navbar-dark fixed-top bg-dark" style="width: 320px">
      <a class="navbar-brand" href="#">Fixed navbar</a>
      <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarCollapse" aria-controls="navbarCollapse" aria-expanded="false" aria-label="Toggle navigation">
        <span class="navbar-toggler-icon"></span>
      </button>
      <div class="collapse navbar-collapse" id="navbarCollapse">
        <ul class="navbar-nav mr-auto">
          <li class="nav-item active">
            <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
          </li>
          <li class="nav-item">
            <a class="nav-link" href="#">Link</a>
          </li>
          <li class="nav-item">
            <a class="nav-link disabled" href="#">Disabled</a>
          </li>
        </ul>
        <form class="form-inline mt-2 mt-md-0">
          <input class="form-control mr-sm-2" type="text" placeholder="Search" aria-label="Search">
          <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
        </form>
      </div>
    </nav>

    <main role="main" class="container" style="overflow: auto;max-width: 100%;">
      <div class="jumbotron" style="width: 3000px; max-width: 3000px">
        <h1>Navbar example</h1>
        <p class="lead">This example is a quick exercise to illustrate how fixed to top navbar works. As you scroll, it will remain fixed to the top of your browser's viewport.</p>
        <a class="btn btn-lg btn-primary" href="../../components/navbar/" role="button">View navbar docs &raquo;</a>
      </div>
    </main>

    <!-- Bootstrap core JavaScript
    ================================================== -->
    <!-- Placed at the end of the document so the pages load faster -->
    <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.4.0/js/bootstrap.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/2.4.0/umd/popper.min.js"></script>
  </body>
</html>

This adjustment ensures that the content displays correctly on all devices without any issues on the

I've made some minor tweaks to your code, and now it should function seamlessly on both Desktop and Mobile devices.

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