bootstrap 4 navbar, cant remove padding - html

Question

I am trying to remove the padding between menu and navbar margin. I cant seem to find an answer.
header nav #logo {
padding: -10px; }
<header>
<nav class="navbar navbar-expand-lg navbar-light bg-light" style="background-color: red;">
<a class="navbar-brand" href="#">
<img id="logo" src="images/logo.png" width="60" height="60">
</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 active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#">Disabled</a>
</li>
</ul>
<form class="form-inline my-2 my-lg-0">
<input class="form-control mr-sm-2" type="text" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
</form>
</div>
</nav>
</header>

Answer 1

Use the Bootstrap 4 spacing utilites for padding.
Decrease Padding Navbar Example
py-0 sets vertical (y-axis) padding to 0.
<nav class="navbar navbar-dark py-0 bg-primary navbar-expand-lg">
<a class="navbar-brand" href="#">Logo</a>
<div class="navbar-collapse collapse" id="navbarNav">
<ul class="navbar-nav">
<li class="nav-item py-0">Link</li>
</ul>
</div>
</nav>

Answer 2

In my case it was not the nav that had the pading, it was the body. To the body I put py-0 in his class and ready