如何制作这样的 Bootstrap 导航栏:Navbar
图像应该在导航栏上居中。
这是我目前拥有的:
<div class="navbar navbar-static-top">
<div class="navbar-inner">
<a class="btn btn-navbar" data-toggle="collapse" data-target=".nav-collapse">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</a>
<a class="brand" href="index.html">
<img style="height:50px;" src="http://kpv.s3.amazonaws.com/static/img/logo.jpg">
</a>
<div class="nav-collapse collapse">
<ul class="nav pull-left">
<li class="active">
<a href="index.html" class="scroller">Home</a>
</li>
<li>
<a href="pricing.html" class="scroller">Pricing</a>
</li>
<li>
<a href="knowledge.html" class="scroller">FAQ</a>
</li>
</ul>
</div>
这是上面代码附带的 CSS:
.navbar-inner{
position:relative;
padding-left:70px;
}
.navbar .brand {
margin-left: 0px;
font-size: 20px;
font-weight: 200;
color: #777777;
text-shadow: 0 1px 0 #ffffff;
position: absolute;
width: 50px;
background: #f00;
left: 0px;
top: 0px;
padding: 10px;
}
这是我的新代码:http://www.bootply.com/gEoN0zJ3e8
如何让图片居中?
最佳答案
您可以通过使用 position:absolute 放置图像来实现这一点。根据您计划为移动设备执行的操作,您必须根据需要调整导航栏(该示例假定默认的 Bootstrap 行为)。
工作示例:
nav.navbar {
margin-top: 50px;
margin-bottom: 65px;
border: 0;
}
nav.navbar .navbar-collapse {
border: 0;
}
nav.navbar .navbar-brand {
position: absolute;
width: 50px;
height: 50px;
left: 50%;
top: -50px;
transform: translateX(-50%);
padding: 0px;
}
nav.navbar .navbar-brand img {
height: 150px;
width: 150px;
margin-left: -50px;
}
@media only screen and (min-width: 768px) {
nav.navbar {
margin-top: 65px;
margin-bottom: 80px;
min-height: 20px;
height: 20px;
}
nav.navbar .navbar-nav > li > a {
font-size: 12px;
padding: 0px 10px;
}
nav.navbar .navbar-brand {
top: -65px;
}
}
@media only screen and (max-width: 767px) {
nav.navbar .navbar-nav {
margin-top: 50px;
}
}
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
<nav class="navbar navbar-inverse navbar-static-top">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">
<img src="http://placehold.it/150x150/b71c1c/fff?text=LOGO">
</a>
</div>
<div class="collapse navbar-collapse" id="navbar">
<ul class="nav navbar-nav">
<li class="active"><a href="index.html" class="scroller">Home</a>
</li>
<li><a href="pricing.html" class="scroller">Pricing</a>
</li>
<li><a href="knowledge.html" class="scroller">FAQ</a>
</li>
</ul>
</div>
</div>
</nav>
<div class="container">
<div class="alert alert-info">
Content
</div>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
关于html - Bootstrap 导航栏上的图像突出显示在菜单栏上方和下方,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/40534872/