The logo not taking full height of the header - html

Question

I need to set the height of the logo same as the header. Though I set the height of the logo as 100% it doesn't take the height of the header. I am not sure how to set the height of the logo as the header height. Here is my code
app.css
body {
font-family: 'Open Sans', sans-serif;
border-top:none;
}
.navbar {
margin-bottom: 0px;
padding: 10px 15px;
}
.navbar img {
width : 100%;
height : 100%;
}
Master page
You can see the reference of the logo in the header element
<header>
<nav class="navbar navbar-default">
<div class="container-fluid">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<img src="~/Images/NGSR-logo.jpg" />
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav navbar-right">
<li>Requests</li>
<li>Activities</li>
<li>Reports</li>
<li>Admin</li>
<li class="dropdown">
Country <span class="caret"></span>
<ul class="dropdown-menu">
<li>Action</li>
<li>Another action</li>
<li>Something else here</li>
<li role="separator" class="divider"></li>
<li>Separated link</li>
</ul>
</li>
<li>Save View</li>
</ul>
</div><!-- /.navbar-collapse -->
</div><!-- /.container-fluid -->
</nav>
</header>
Header view

Answer 1

Try to set a max-width for the logo image:
.navbar-header img{
max-width:280px;
}
and then set padding to zero for the navbar:
.navbar{
padding:0;
}
For my example I picked a random logo from google, however that should give you the general idea!
Fiddle here: https://jsfiddle.net/captain_theo/f1a5bda1/