The sticky-top class in Bootstrap 4 does not seem to be functioning properly on the

It seems that other classes in my codebase are interfering with the sticky-top class from Bootstrap. I initially thought that all I had to do was add the class to the navbar, but with two navbars and restrictions on using fixed-top, things have become tricky. I was hoping the second navbar would stick to the top as I scrolled down, but it seems I'm missing something. Here's a snippet of my code:

/* CSS Snippet Goes Here */
<!-- HTML Snippet Goes Here -->

Answer №1

The issue lies in the fact that the parent container named "main" lacks a significant height. To resolve this, simply move your 2000px height div into the main container, and apply the class sticky-top to the element that is a direct child of "main".

Check out the demonstration here:

<div class="main">
    <div class="header-firstnav">
        <nav class="navbar navbar-expand-lg">
             ...
        </nav>
    </div>

    <div class="header-secondnav sticky-top">
        <nav class="navbar navbar-expand-lg">
             ...
        </nav>
    </div>

    <div>content with height...</div>
</div>
<footer></footer>

It is important to keep in mind that the sticky-top class will not function properly if any of its parent elements have overflow: hidden applied to them.

For further information, refer to this article: How to place navbar below sticky navbar using bootstrap 4?

Answer №2

Referencing: https://github.com/twbs/bootstrap/issues/21919

The class .sticky-top won't be effective if placed inside a container. It needs to be the outermost element within the <body>

These scenarios demonstrate the correct usage:

<body>
    <header class="sticky-top">
        <nav class="navbar navbar-light bg-light p-0"> 
            ... 
        </nav>
    </header>
...
</body>

and

<body>
    <nav class="navbar sticky-top navbar-light bg-light p-0">
        ...
    </nav>
...
</body>

Answer №3

Another important point to consider is whether any parent element has any of the following CSS properties defined:

overflow overflow-y overflow-x If any of these properties are set to the values 'auto', 'hidden', 'overlay', or 'scroll', the functionality will NOT work as expected.

The recommended solution is to either remove these properties or change their value to 'unset'. https://i.sstatic.net/4p4tu.png

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