Materialize framework: responsive logo in navbar - css

Question

I'm creating a website in materialize framework. I have a problem with logo in navbar. So my logo is very big (6202x3800 px) and I don't have any other version. I want to put this logo in navbar but it always exceeds the frame of nav-wrapper. I tried to add class responsive-img but it didn't work at all.
Here is my code:
#allcontent {
background-color: white;
margin: 2%;
}
body {
background: #d26335;
}
nav {
color: black;
}
<div class="row" id="allcontent">
<div class="navbar-default" id="navbar">
<nav class="white">
<div class="nav-wrapper">
<img class="responsive-img" id="logo" src="<!-- my image -->"/>
<ul id="nav-mobile" class="right hide-on-med-and-down">
<li><i class="material-icons">search</i>
</li>
<li>colors</li>
</ul>
</div>
</nav>
</div>
</div>

Answer 1

All you have to do is control the size of the image with CSS to whatever dimensions you want:
.navbar-material .nav-wrapper .brand-logo img {
height: 64px;
}
Or use a image editor to resize the image to something more reasonable for a logo to start with. See Photoshop, GIMP or Sketch to name a few.
(*And definitely compress images; if you're not using a build system to do this there's always something like TINYpng)
See working example Snippet.
(**note all classes used are default MaterialCSS minus the .navbar-material class and it looks like you're mixing Bootstrap3 classes with MaterialCSS classes)
$(".button-collapse").sideNav();
body {
background: #d26335;
}
nav.navbar-material {
background: #d26335;
border: none;
box-shadow: none;
}
.navbar-material .nav-wrapper {
background: white;
margin: 20px;
}
.navbar-material .nav-wrapper > ul > li > a {
color: black;
}
.navbar-material .nav-wrapper .brand-logo img {
height: 64px;
}
.navbar-material .nav-wrapper .button-collapse i {
color: black;
}
#media (max-width: 600px) {
.navbar-material .nav-wrapper .brand-logo img {
height: 56px;
}
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/materialize/0.97.1/js/materialize.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/materialize/0.97.1/css/materialize.min.css" rel="stylesheet" />
<link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
<nav class="navbar-material">
<div class="nav-wrapper">
<a href="#!" class="brand-logo">
<img src="http://placehold.it/6202x3800/FF001E/fff">
</a>
<i class="material-icons">menu</i>
<ul class="right hide-on-med-and-down">
<li>Sass
</li>
<li>Components
</li>
<li>Javascript
</li>
<li>Mobile
</li>
</ul>
<ul class="side-nav" id="mobile-demo">
<li>Sass
</li>
<li>Components
</li>
<li>Javascript
</li>
<li>Mobile
</li>
</ul>
</div>
</nav>