How to Prevent Bootstrap Scrollable Menu Container Expansion?

Scrollable Menu with Bootstrap: Preventing Container Expansion

Original Issue:

Attempts to implement a scrollable menu with Bootstrap using a certain method result in an unwanted expansion of the menu's container.

Solution:

To resolve this issue, you can directly apply CSS properties to your scrollable menu class:

<code class="css">.scrollable-menu {
    height: auto;
    max-height: 200px;
    overflow-x: hidden;
}</code>

This will contain the menu within its own space, preventing it from expanding the container.

Updated HTML:

<code class="html"><ul class="dropdown-menu scrollable-menu" role="menu">
    <li><a href="#">Action</a></li>
    <li><a href="#">Another action</a></li>
    <li><a href="#">Something else here</a></li>
    <li><a href="#">Action</a></li>
    <!-- ... -->
    <li><a href="#">Action</a></li>
    <li><a href="#">Another action</a></li>
</ul></code>

Alternative Approaches Compatible with Bootstrap:

Bootstrap 4/5:

Set max-height on the .dropdown-menu class:

<code class="css">.dropdown-menu {
    max-height: 280px;
    overflow-y: auto;
}</code>

Horizontal Menu Using Flexbox:

Consider using flexbox for a horizontal menu alternative:

https://codeply.com/p/shJzHGE84z

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