custom css navbarissues, which won't working in mobile - navbar

What is missing in my code, nav is not working on mobile screens, have I missed any tag with respect to menu bar?
<nav class="navbar navbar-expand-lg bg-white text-uppercase fixed-top" style="border-bottom: .125rem solid #fc9a00;">
<div class="container">
<a class="navbar-brand" href="index.html"><img src="images/top_logo.3bfa77.gif" alt="logo" /></a>
<button class="navbar-toggler text-uppercase font-weight-bold bg-primary rounded" type="button" data-bs-toggle="collapse" data-bs-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
Menu
<i class="fas fa-bars"></i>
</button>
<div class="collapse navbar-collapse" id="navbarResponsive">
<ul class="navbar-nav ms-auto">
<li class="nav-item dropdown mx-0 mx-lg-1">
Company
<div class="dropdown-menu">
Greeting
</div>
</li>
<li class="nav-item dropdown mx-0 mx-lg-1">
Services
<div class="dropdown-menu">
test
</div>
</li>
</ul>
</div>
</div>
</nav>
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://use.fontawesome.com/releases/v5.15.3/js/all.js" crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css">


It seams you did not add bootstraps css and javascript. This works for me
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css">
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous">
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ka7Sk0Gln4gmtz2MlQnikT1wXgYsOg+OMhuP+IlRH9sENBO0LRn5q+8nbTov4+1p" crossorigin="anonymous"></script>
<script src="https://use.fontawesome.com/releases/v5.15.3/js/all.js" crossorigin="anonymous"></script>
<nav class="navbar navbar-expand-lg bg-white text-uppercase fixed-top" style="border-bottom: .125rem solid #fc9a00;">
<div class="container">
<a class="navbar-brand" href="index.html"><img src="images/top_logo.3bfa77.gif" alt="logo" /></a>
<button class="navbar-toggler text-uppercase font-weight-bold bg-primary rounded" type="button" data-bs-toggle="collapse" data-bs-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
Menu
<i class="fas fa-bars"></i>
</button>
<div class="collapse navbar-collapse" id="navbarResponsive">
<ul class="navbar-nav ms-auto">
<li class="nav-item dropdown mx-0 mx-lg-1">
Company
<div class="dropdown-menu">
Greeting
</div>
</li>
<li class="nav-item dropdown mx-0 mx-lg-1">
Services
<div class="dropdown-menu">
test
</div>
</li>
</ul>
</div>
</div>
</nav>

Related

Bootstrap Hamburger Icon not aligning with Navbar-Brand

I'm trying to create a website using bootstrap and while using the navbar component, I'm facing an issue where in when the screen shrinks to the breakpoint I've set (which is lg) the hamburger icon's alignment gets disrupted as seen below.
Can someone please let me know why this is happening and what is the best way to fix this issue? Thanks in advance
<html>
<head>
<title>Johns's Portfolio</title>
<!-- Linking custom CSS file -->
<link rel="stylesheet" href="./index.css">
<!-- Linking Bootstrap -->
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-dark bg-dark">
<div class="container">
<span class="navbar-brand fw-bold">John Doe</span>
</div>
<button class="navbar-toggler ms-auto" type="button" data-bs-toggle="collapse" data-bs-target="#ToggleMenu" aria-controls="ToggleMenu" aria-expanded="false" aria-label="toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="navbar-collapse collapse" id="ToggleMenu">
<ul class="navbar-nav">
<li class="nav-item">
About
</li>
<li class="nav-item">
Work
</li>
<li class="nav-item">
Projects
</li>
<li class="nav-item">
Education
</li>
<li class="nav-item">
Testimonials
</li>
<li class="nav-item">
Contact
</li>
</ul>
</div>
</nav>
<!-- Bootstrap Javascript files-->
<script src="https://cdn.jsdelivr.net/npm/#popperjs/core#2.9.2/dist/umd/popper.min.js" integrity="sha384-IQsoLXl5PILFhosVNubq5LC7Qb9DXgDA9i+tQ8Zj3iwWAwPtgFTxbJ8NT4GN1R8p" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.0.2/dist/js/bootstrap.min.js" integrity="sha384-cVKIPhGWiC2Al4u+LWgxfKTRIcfu0JTxR+EQDz/bgldoEyl4H0zUF0QKbrJ0EcQF" crossorigin="anonymous"></script>
</body>
</html>
I'm also attaching a picture of the issue:

Your problem is you put your button outside of container
<div class="container">
<span class="navbar-brand fw-bold">John Doe</span>
</div>
<button class="navbar-toggler ms-auto" type="button" data-bs-toggle="collapse" data-bs-target="#ToggleMenu" aria-controls="ToggleMenu" aria-expanded="false" aria-label="toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
It needs to be like this
<div class="container">
<span class="navbar-brand fw-bold">John Doe</span>
<button class="navbar-toggler ms-auto" type="button" data-bs-toggle="collapse" data-bs-target="#ToggleMenu" aria-controls="ToggleMenu" aria-expanded="false" aria-label="toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
</div>
You can try this fix
<html>
<head>
<title>Johns's Portfolio</title>
<!-- Linking custom CSS file -->
<link rel="stylesheet" href="./index.css">
<!-- Linking Bootstrap -->
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
</head>
<body>
<nav class="navbar navbar-expand-lg navbar navbar-dark bg-dark">
<div class="container">
<span class="navbar-brand fw-bold">John Doe</span>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarNav">
<ul class="navbar-nav">
<li class="nav-item">
About
</li>
<li class="nav-item">
Work
</li>
<li class="nav-item">
Projects
</li>
<li class="nav-item">
Education
</li>
<li class="nav-item">
Testimonials
</li>
<li class="nav-item">
Contact
</li>
</ul>
</div>
</div>
</nav>
<!-- Bootstrap Javascript files-->
<script src="https://cdn.jsdelivr.net/npm/#popperjs/core#2.9.2/dist/umd/popper.min.js" integrity="sha384-IQsoLXl5PILFhosVNubq5LC7Qb9DXgDA9i+tQ8Zj3iwWAwPtgFTxbJ8NT4GN1R8p" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.0.2/dist/js/bootstrap.min.js" integrity="sha384-cVKIPhGWiC2Al4u+LWgxfKTRIcfu0JTxR+EQDz/bgldoEyl4H0zUF0QKbrJ0EcQF" crossorigin="anonymous"></script>
</body>
</html>

Bootstrap navbar toggle is not expand

I use want to use Bootstrap navbar for expand webpage when open in mobile phone. I use Bootstrap in html file like this code.
<html>
<head>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap#4.2.1/dist/css/bootstrap.min.css" integrity="sha384-GJzZqFGwb1QTTN6wy59ffF1BuGJpLSa9DkKMp0DgiMDm4iYMj70gZWKYbI706tWS" crossorigin="anonymous">
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js#1.14.6/dist/umd/popper.min.js" integrity="sha384-wHAiFfRlMFy6i5SRaxvfOCifBUQy1xHdJ/yoi7FRNXMRBu5WHdZYu1hA6ZOblgut" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#4.2.1/dist/js/bootstrap.min.js" integrity="sha384-B0UglyR+jN6CkvvICOB2joaf5I4l3gm9GU6Hc1og6Ls7i6U/mkkaduKaBhlAXv9k" crossorigin="anonymous"></script>
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-dark bg-dark">
<div class="container-fluid">
<li class="nav-item"><a class="navbar-brand" href="/"><i class="fa-solid fa-bolt"></i></a></li>
<a class="navbar-brand" href="/">Center</a>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-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 me-auto mb-2 mb-lg-0">
<li class="nav-item">
<a class="nav-link" href="#">Hello</a>
</li>
</ul>
</div>
</div>
</nav>
<div class="container">
<p>
{% block content %}
{% endblock %}
</p>
</div>
</body>
</html>
when I click this button why it not expand ?
How to fix it ?

<html>
<head>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap#4.2.1/dist/css/bootstrap.min.css" integrity="sha384-GJzZqFGwb1QTTN6wy59ffF1BuGJpLSa9DkKMp0DgiMDm4iYMj70gZWKYbI706tWS" crossorigin="anonymous">
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js#1.14.6/dist/umd/popper.min.js" integrity="sha384-wHAiFfRlMFy6i5SRaxvfOCifBUQy1xHdJ/yoi7FRNXMRBu5WHdZYu1hA6ZOblgut" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#4.2.1/dist/js/bootstrap.min.js" integrity="sha384-B0UglyR+jN6CkvvICOB2joaf5I4l3gm9GU6Hc1og6Ls7i6U/mkkaduKaBhlAXv9k" crossorigin="anonymous"></script>
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-dark bg-dark">
<div class="container-fluid">
<li class="nav-item"><a class="navbar-brand" href="/"><i class="fa-solid fa-bolt"></i></a></li>
<a class="navbar-brand" href="/">Center</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 me-auto mb-2 mb-lg-0">
<li class="nav-item">
<a class="nav-link" href="#">Hello</a>
</li>
</ul>
</div>
</div>
</nav>
<div class="container">
<p>
abcd
</p>
</div>
</body>
</html>
try this.
<nav class="navbar navbar-expand-lg navbar-dark bg-dark">
<div class="container-fluid">
<li class="nav-item"><a class="navbar-brand" href="/"><i class="fa-solid fa-bolt"></i></a></li>
<a class="navbar-brand" href="/">Center</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 me-auto mb-2 mb-lg-0">
<li class="nav-item">
<a class="nav-link" href="#">Hello</a>
</li>
</ul>
</div>
</div>
</nav>

Bootstrap 5 navbar expand button not working

I have a problem with my navbar. I want it to collapse when visited on a smaller device. The Problem is that the button that should show the menu options doesn't display them. Am i not including the scripts right? Here is my Code. It wont run in the window so sorry for that.
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<body>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<div class="container-fluid">
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarTogglerDemo03" aria-controls="navbarTogglerDemo03" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<a class="navbar-brand" href="#">Test</a>
<div class="collapse navbar-collapse" id="navbarTogglerDemo03">
<ul class="navbar-nav me-auto mb-2 mb-lg-0">
<li class="nav-item">
<a class="nav-link active" aria-current="page" href="#">Page1</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Page2</a>
</li>
</ul>
</div>
</div>
</nav>
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
</body>

How you can see if include the correct bundle all work:
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.0.1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-+0n0xVW2eSR5OomGNYDnhzAbDsOXxcvSN1TPprVMTNDbiYZCxYbOOl7+AMvyTG2x" crossorigin="anonymous">
<body>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<div class="container-fluid">
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarTogglerDemo03" aria-controls="navbarTogglerDemo03" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<a class="navbar-brand" href="#">Test</a>
<div class="collapse navbar-collapse" id="navbarTogglerDemo03">
<ul class="navbar-nav me-auto mb-2 mb-lg-0">
<li class="nav-item">
<a class="nav-link active" aria-current="page" href="#">Page1</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Page2</a>
</li>
</ul>
</div>
</div>
</nav>
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.0.1/dist/js/bootstrap.bundle.min.js" integrity="sha384-gtEjrD/SeCtmISkJkNUaaKMoLD0//ElJ19smozuHV6z3Iehds+3Ulb9Bn9Plx0x4" crossorigin="anonymous"></script>
Bootstrap 5 link

Bootstrap navbar collapse isn't collapsing

I have a navbar from bootstrap that isn't collapsing. I have JQuery placed before bootstrap and all CDNJ in the right place but still isn't working.
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.0.0-beta2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-BmbxuPwQa2lc/FVzBcNJ7UAyJxM6wuqIj61tLrc4wSX0szH/Ev+nYRRuWlolflfl" crossorigin="anonymous">
<nav class="navbar navbar-expand-md navbar-light ">
<div class="container">
<a class="navbar-brand" href="#">
<img src="images/logo.png" alt="" class="d-inline-block align-top">
</a>
<button type="button" class="navbar-toggler" data-toggle="collapse" data-target="#navbarCollapse">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse justify-content-end" id="navbarCollapse">
<ul class="nav ">
<li class="nav-item">
<a class="nav-link" aria-current="page" href="index.php">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="aboutus.php">About</a>
</li>
<li class="nav-item">
<a class="nav-link" href="services.php">Services</a>
</li>
<li class="nav-item">
<a class="nav-link " href="#">Our Work</a>
</li>
<li class="nav-item">
<a class="nav-link " href="#">Contact</a>
</li>
</ul>
</div>
</div>
</nav>
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.0.0-beta2/dist/js/bootstrap.bundle.min.js" integrity="sha384-b5kHyXgcpbZJO/tY9Ul7kGkf1S0CWuKcCD38l8YkeH8z8QjE0GmW1gYU5S9FOnJ0" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js#1.16.1/dist/umd/popper.min.js" integrity="sha384-9/reFTGAW83EW2RDu2S0VKaIzap3H66lZH81PoYlFhbGU+6BZp6G7niu735Sk7lN" crossorigin="anonymous"></script>
I am using Bootstrap 5
Edit: I solved the problem just removed the integrity from bootstrap.bundle.min.js and it worked

Using the button from Bootstrap docs with your id seems to work:
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarCollapse" aria-controls="navbarCollapse" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
https://getbootstrap.com/docs/5.0/components/navbar/
Edit: maybe you were using the wrong documentation from a previous version.

Want to have Nav-Item be same height as Nav-Bar

I am using Bootstrap 4 and trying to make a nav-item have the same height as my navbar so that when I add background-color to it it looks like a stripe through the nav-bar.
Initially the item was centered and left space on top and below. I added negative margin to get it up against the top but the same didn't work when I tried to add "margin-bottom"
I then tried fixing the height of the navbar but when I did that and clicked on the toggle to bring down the navbar items they didn't show up because the fixed height prevented it from appearing.
<body>
<nav class="navbar navbar-dark bg-dark text-center">
<div class="container">
<div class="mr-auto order-0" class= "d-flex align-items-stretch">
<a class="navbar-brand ml-auto" style="background-color:red; line-height: 58px; margin-top:-9px; padding: 0 20px 0 20px;" class="nav-item active" href="#">Matthew Krebs</a>
</div>
<a class="navbar-brand text-center" href="#"></a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarResponsive"
aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarResponsive">
<ul class="navbar-nav ml-auto mx-auto">
<li class="nav-item active">
<a class="nav-link" href="#">Home
</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">About</a>
</li>
</ul>
</div>
</div>
</nav>
</body>

Here you go!
<!doctype html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap#4.5.3/dist/css/bootstrap.min.css" integrity="sha384-TX8t27EcRE3e/ihU7zmQxVncDAy5uIKz4rEkgIXeMed4M0jlfIDPvg6uqKI2xXr2" crossorigin="anonymous">
<title>Hello, world!</title>
</head>
<body>
<nav style="padding-top: 0px; padding-bottom: 0px;" class="navbar navbar-expand-lg navbar-light bg-light" id="navbar">
<a class="navbar-brand" href="#">Navbar</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarNav">
<ul class="navbar-nav">
<li class="nav-item active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Features</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Pricing</a>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
</li>
</ul>
</div>
</nav>
<h1>Hello, world!</h1>
<!-- Optional JavaScript; choose one of the two! -->
<!-- Option 1: jQuery and Bootstrap Bundle (includes Popper) -->
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#4.5.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ho+j7jyWK8fNQe+A12Hb8AhRq26LrZ/JpcUGGOn+Y7RsweNrtN/tE3MoK7ZeZDyx" crossorigin="anonymous"></script>
<!-- Option 2: jQuery, Popper.js, and Bootstrap JS
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js#1.16.1/dist/umd/popper.min.js" integrity="sha384-9/reFTGAW83EW2RDu2S0VKaIzap3H66lZH81PoYlFhbGU+6BZp6G7niu735Sk7lN" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#4.5.3/dist/js/bootstrap.min.js" integrity="sha384-w1Q4orYjBQndcko6MimVbzY0tgp4pWB4lZ7lr30WKz0vr/aWKhXdBNmNb5D92v7s" crossorigin="anonymous"></script>
-->
<script>
document.querySelectorAll(".nav-item").forEach(item => {
item.style.height = document.getElementById("navbar").offsetHeight;
item.style.backgroundColor = 'aqua';
item.style.marginRight = '5px';
})
</script>
</body>
</html>

A few things:
I changed the inline CSS to a separate class just for the red background
added the nav-link class so that you can see the behavior of the nav-item on the top and those which are revealed upon clicking the burger menu
the navbar class had a padding which we had to overwrite to take care of the stripe look
make sure that your CSS is loaded after bootstrap, so that you can override it without using !important
working snippet below:
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js"></script>
<nav class="navbar navbar-dark bg-dark text-center">
<div class="container">
<div class="mr-auto order-0" class="d-flex align-items-stretch">
<a class="nav-item nav-link my-custom-style" href="#">Matthew Krebs</a>
</div>
<a class="navbar-brand text-center" href="#"></a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarResponsive">
<ul class="navbar-nav ml-auto mx-auto">
<li class="nav-item active">
<a class="nav-link" href="#">Home
</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">About</a>
</li>
</ul>
</div>
</div>
</nav>
<style>
.navbar {
padding-top: 0;
padding-bottom: 0;
}
/* just to highlight our nav-item */
.my-custom-style {
background-color: red;
}
.nav-link {
border: 1px dotted yellow;
}
</style>

The desired effect can be achieved by simply removing the padding from the <nav> element. The easiest way to do this is to add the p-0 class to the <nav>. Bootstrap includes several margin and padding utility classes. Read about them here.
<nav class="navbar navbar-dark bg-dark text-center p-0">
<div class="container">
<div class="mr-auto order-0" class="d-flex align-items-stretch">
<a class="navbar-brand ml-auto"class="nav-item active" href="#">
Matthew Krebs
</a>
</div>
<button class="navbar-toggler" data-toggle="collapse" data-target="#navbarResponsive">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarResponsive">
<ul class="navbar-nav ml-auto mx-auto">
<li class="nav-item active">
<a class="nav-link" href="#">Home
</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">About</a>
</li>
</ul>
</div>
</div>
</nav>
Codepen example.