Expanding the Width of Bootstrap 4 Dropdown Button

Currently, I am utilizing Bootstrap 4's dropdown feature. Is there a way to modify the code below so that the dropdown menu that appears upon clicking the button matches the same width as the button itself?

It's important to note that the button's size may vary depending on the text it contains, but I want the dropdown menu to remain consistent in width regardless of the text length.

<div class="dropdown">
    <button class="btn btn-secondary dropdown-toggle" type="button" id="dropdownMenuButton" 
        data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
        Dropdown button
    </button>
    <div class="dropdown-menu w-100" aria-labelledby="dropdownMenuButton">
        <a class="dropdown-item" href="#">Action</a>
        <a class="dropdown-item" href="#">Another action</a>
        <a class="dropdown-item" href="#">Something else
        here</a>
    </div>
</div>

https://jsfiddle.net/5mqg7dgv/

Any assistance is greatly appreciated. Thank you in advance.

htmlcssbootstrap-4

Answer №1

Since <div> elements are block level, they naturally expand to fill the available horizontal space. This means that applying .w-100 to the .dropdown-menu will extend its width to that of the parent container, which may be larger than just the visible button.

To address this issue, one solution is to change the display property of the .dropdown to inline-block using the class .d-inline-block. Here's an example:

<div class="dropdown d-inline-block">
    <button class="btn btn-secondary dropdown-toggle" type="button" id="dropdownMenuButton" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
        Dropdown button
    </button>

    <div class="dropdown-menu w-100" aria
    labelledby="dropdownMenuButton">
        <a class="dropdown-item" href="#">Action</a>
        <a class="dropdown-item" href="#">Another action</a>
        <a class="dropdown-item" href="#">Something else
        here</a>
    </div>
</div>


<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script>

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