In Bootstrap 5 navbar, a distinct white underline is displayed beneath the dropdown menu in the

When designing my website with Bootstrap 5, I utilized the framework to create the navbar. Incorporating my own CSS, I enabled the services dropdown to open on hover. However, upon testing, I observed an unexpected white underline appearing under the services dropdown in addition to the intended orange underline.

Test.html

<!doctype html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />

<title>Home | </title>

<meta name="description" content="Write an awesome description for your new site here. It will appear in your document head meta (for Google search results) and in your feed.xml site description." />

<link rel="stylesheet" href="/_bridgetown/static/css/main.c7d4dd3f1984a290e9be.css" />
<link href="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="fe9c91918a8d8a8c9f8ebecbd0cdd0ce">[email protected]</a>/dist/css/bootstrap.min.css" rel="stylesheet">
<link rel="stylesheet" 
href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
<link rel="stylesheet" 
...

// Rest of the HTML code has been omitted for brevity.

Test.css

@media (min-width: 576px) {
    .dropdown:hover > .dropdown-menu {
        display: block;
        background-color: hsl(210, 45%, 30%);
        margin-top: 0;
        width: 175px;

        .btn {
            color: hsl(0, 0%, 100%);
        }

        .dropdown-item:hover {
            background-color: hsl(210, 55%, 41%);
        }
    }
}

#navbar-color {
    background-color: hsl(210, 45%, 30%);
}

.navbar-light ...

// Rest of the CSS code has been omitted for brevity.

Answer №1

Following @P4dL4d's recommendation, it is advised to eliminate the dropdown-toggle class from the services anchor tag.

<a class="nav-link text-white" href="/services.html" role="button"  aria-expanded="false" id="servicesDropdown">
    Services
</a>

If you inspect the Browser DevTools' Inspector tab, you will find that the dropdown-toggle class adds a style to the :after pseudo-element which includes border styles, causing it to appear white instead of orange. https://i.sstatic.net/kr58t.png

Once the border-top property is disabled, the white border on the after element disappears since the other border properties are either transparent or set to 0. https://i.sstatic.net/FbFu8.png

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