Bootstrap shadow not displaying on nav.shadow - html

Question

I have a navigation bar component made with vue.js. I am styling the app with bootstrap so I have included bootstrap in the main html file.
I have built the navbar component and added the styling that I want but when I add the shadow or shadow-lg class the shadow does not appear at all. I have tried increasing the z-index of the navbar but the shadow still does not show.
<template>
<div class="row">
<div class="col">
<nav class="navbar navbar-expand-lg navbar-dark bg-dark navbar-rounded shadow-lg" style="z-index: 100;">
<a class="navbar-brand" href="/">{{ logo_text }}</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent"
aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto">
<li class="nav-item"
v-for="(item, index) in links"
:key="index"
>
<a :href="item.href" class="nav-link">{{ item.text }}</a>
</li>
</ul>
</div>
</nav>
</div>
</div>
</template>
Note that the class navbar-rounded is a custom class I added with the styling
.navbar-rounded {
border-bottom-left-radius: 10px;
border-bottom-right-radius: 10px;
}
How would I get the shadow to display correctly?

Answer 1

Shadow has been applied properly. There is no issue on applying styles.
I have created a JSFiddle, where I converted navbar to a lighter version. There you can see shadow is applied. The reason is due to dark theme applied, you can't see a color seperation between navbar background color and it's shadow color.
Clarify this issue by applying shadow, shadow-sm and shadow-lg classes on nav element.
Hope this will help to fix your issue.
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
<div class="row">
<div class="col">
<nav class="navbar navbar-expand-lg navbar-light bg-light navbar-rounded shadow" style="z-index: 100;">
<a class="navbar-brand" href="/">{{ logo_text }}</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent"
aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto">
<li class="nav-item"
v-for="(item, index) in links"
:key="index"
>
<a :href="item.href" class="nav-link">{{ item.text }}</a>
</li>
</ul>
</div>
</nav>
</div>
</div>