CSS Materialise 框架：导航栏中的响应式徽标
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Materialize framework: responsive logo in navbar
提问by Filip Perz
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-imgbut it didn't work at all.
我正在物化框架中创建一个网站。我在导航栏中的徽标有问题。所以我的标志非常大（6202x3800 像素），我没有任何其他版本。我想把这个标志放在导航栏中，但它总是超出nav-wrapper. 我试图添加类，responsive-img但它根本不起作用。
Here is my code:
这是我的代码：
#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">
<a href="index.html" class="brand-logo left"><img class="responsive-img" id="logo" src="<!-- my image -->"/></a>
<ul id="nav-mobile" class="right hide-on-med-and-down">
<li><a href="sass.html"><i class="material-icons">search</i></a>
</li>
<li>colors</li>
</ul>
</div>
</nav>
</div>
</div>
回答by vanburen
All you have to do is control the size of the image with CSS to whatever dimensions you want:
您所要做的就是使用 CSS 将图像的大小控制为您想要的任何尺寸：
.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, GIMPor Sketchto name a few.
或者使用图像编辑器将图像调整为更合理的大小，以便徽标开始。参见Photoshop、GIMP或Sketch 等。
(*And definitely compress images; if you're not using a build system to do this there's always something like TINYpng)
（*并且绝对压缩图像；如果您不使用构建系统来执行此操作，那么总会有类似TINYpng的东西）
See working example Snippet.
请参阅工作示例代码段。
(**note all classes used are default MaterialCSSminus the .navbar-materialclass and it looks like you're mixing Bootstrap3 classes with MaterialCSS classes)
（**注意所有使用的类都是默认的MaterialCSS减去.navbar-material类，看起来你正在混合 Bootstrap3 类和 MaterialCSS 类）
$(".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>
<a href="#" data-activates="mobile-demo" class="button-collapse"><i class="material-icons">menu</i></a>
<ul class="right hide-on-med-and-down">
<li><a href="sass.html">Sass</a>
</li>
<li><a href="badges.html">Components</a>
</li>
<li><a href="collapsible.html">Javascript</a>
</li>
<li><a href="mobile.html">Mobile</a>
</li>
</ul>
<ul class="side-nav" id="mobile-demo">
<li><a href="sass.html">Sass</a>
</li>
<li><a href="badges.html">Components</a>
</li>
<li><a href="collapsible.html">Javascript</a>
</li>
<li><a href="mobile.html">Mobile</a>
</li>
</ul>
</div>
</nav>