Developing a Bootstrap layout that expands on larger screens but maintains a set height can pose challenges when

I am experiencing an issue with a bootstrap 4 navbar that is supposed to expand on large screens and collapse on small devices. The problem arises when I try to set the navbar height to be smaller than the default height, causing the expand feature to not work properly...

HTML Code:

<header style="background-color: blue;color: white;font-size: 14px">
    <div class="container">
        <nav class="navbar navbar-expand-lg navbar-default" style="height:30px">
           <ul class="navbar-nav mr-auto flex-row justify-content-start">
             <li class="nav-item">
                <a href="#" class="mr-4">
                   <i class="fa fa-twitter-square fa-lg"></i>
                </a>
             </li>
           </ul>

           <a class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarText"
               aria-controls="navbarText" aria-expanded="false" aria-label="Toggle navigation">
               <i class="fa fa-road"></i>
           </a>
           <div class="collapse navbar-collapse" id="navbarText">
              <ul class="navbar-nav ml-auto d-flex">
                 <li class="nav-item active d-inline">
                    <a class="nav-link" href="#">Home1 <span class="sr-only">(current)</span></a>
                 </li>
                 <li class="nav-item active d-inline">
                    <a class="nav-link" href="#">Home2 <span class="sr-only">(current)</span></a>
                 </li>
                </ul>
            </div>
        </nav>
    </div>
</header>

The issue also involves the content not being centered vertically within the set height. Can anyone provide some insight into what I might be missing? The screenshot below illustrates the problem where the expand feature is failing to work.

https://i.sstatic.net/DeJ4X.png

I am aiming to set the height to 30px and ensure the content is vertically centered within that height.

Answer №1

Bootstrap's navbar height is not determined by a CSS height property, but rather by the padding of the <a> elements and their content.

You can adjust the padding of the <a> elements in your navbar by adding the CSS class py-0.

For an example, check out this link: https://codepen.io/navalex/pen/jOPXxor

Answer №2

The problem lies in setting the height to 30px in this section:

<nav class="navbar navbar-expand-lg navbar-default" style="height:30px">

To resolve this issue, you can check out this codepen which showcases your code without the inline style that is causing the problem:

codepen

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