Navbar Burger (Dropdown) pushes content down? - html

Question

When my navbar collapses the burger menu shows up. Whenever I click on it all the content below gets pushed down and leaves me with a messed up homepage.
My Navbar:
<section class="nav-bar">
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<a class="navbar-brand" href="#"><img src="WildfireGraphic1.png" class="rounded float-left" alt="icon1"></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 ml-auto">
<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="#">Film</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Info</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Über uns</a>
</li>
</ul>
</div>
</nav>
</section>
My CSS:
body{
text-align: justify !important;
}
#nav-bar{
position: fixed;
left: 0px;
top: 0px;
width: 100px;
}
.navbar-brand img{
height: 40px;
padding-left: 30;
}
.navbar-nav li{
padding: 0 10px;
}
.navbar-nav li a{
float: right;
text-align: left;
}
.nav-bar ul li a:hover{
color: #000000!important;
}
.navbar{
background: #fff;
}
.navbar-toggler{
border: none!important;
}
.nav-link{
color: #555!important;
font-weight: 600;
font-size: 16px;
}
I have tried using the Z-Index method but no luck so far. Maybe I did something wrong?
https://jsfiddle.net/Lqzs1jdw/8/
Thanks in advance.

Answer 1

You have just make a typo, change the # to . will fix the issue
Example:
.nav-bar{
position: fixed;
width: 100%;
}
https://jsfiddle.net/aslamb/sfoavupd/2/