分类分类
2015-09-23 15:51作者：yezheng
新学bootstrap，模仿segmentfault的导航条，各位朋友看一下吧。
代码如下：
1.
<!DOCTYPE html>
<html>
<head>
<title>Bootstrap 实例 - 默认的导航栏</title>
<link rel="stylesheet" href="//cdn.bootcss.com/bootstrap/3.3.5/css/bootstrap.min.css">
<!-- 可选的Bootstrap主题文件（一般不用引入） -->
<link rel="stylesheet" href="//cdn.bootcss.com/bootstrap/3.3.5/css/bootstrap-theme.min.css">
<link rel="stylesheet" href="/segmentfault_navbar.css">
<!-- jQuery文件。务必在bootstrap.min.js 之前引入 -->
<script src="//cdn.bootcss.com/jquery/1.11.3/jquery.min.js"></script>
<!-- 最新的 Bootstrap 核心 JavaScript 文件 -->
<script src="//cdn.bootcss.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<script src="http://cdn.bootcss.com/bootstrap-hover-dropdown/2.0.1/twitter-bootstrap-hover-dropdown.min.js"></script>
<link ref="stylesheet" href="/segmentfault_navbar.css">
</head>
<body>
<div class="mynav">
<div class="container">
<nav class="navbar navbar-primary">
<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>
<a class="navbar-brand" href="#">SegmentFault</a>
</div>
<form class="navbar-form navbar-left hidden-sm hidden-xs" action="/search" method="post" role="search">
<div class="input-group">
<span class="input-group-addon glyphicon glyphicon-search"></span>
<input type="text" class="form-control my-input-search " placeholder="Search">
</div>
</form>
<!-- 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 my-first-navbar">
<li class="active"><a href="#">问答 <span class="sr-only">(current)</span></a></li>
<li><a href="#">文章</a></li>
<li><a href="#">活动</a></li>
<li><a href="#">榜单</a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">···</a>
<ul class="dropdown-menu">
<li><a href="#">笔记</a></li>
<li><a href="#">职位</a></li>
<li><a href="#">标签</a></li>
<li role="separator" class="divider"></li>
<li><a href="#">Separated link</a></li>
<li role="separator" class="divider"></li>
<li><a href="#">One more separated link</a></li>
</ul>
</li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">撰写<span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="#">提问题</a></li>
<li><a href="#">写文章</a></li>
<li><a href="#">做笔记</a></li>
</ul>
</li>
<li><a href="#"><span class="glyphicon glyphicon-envelope"></span></a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false"> <span class="glyphicon glyphicon-user"></span></a>
<ul class="dropdown-menu">
<li><a href="#">我的主页</a></li>
<li><a href="#">我的档案</a></li>
<li><a href="#">我的笔记</a></li>
<li><a href="#">账号设置</a></li>
<li><a href="#">草稿箱</a></li>
<li><a href="#">收藏夹</a></li>
<li role="separator" class="divider"></li>
<li><a href="#">退出</a></li>
<li><a href="#">帮助中心</a></li>
<li><a href="#">建议反馈</a></li>
</ul>
</li>
</ul>
</div><!-- /.navbar-collapse -->
</div><!-- /.container-fluid -->
</nav>
</div>
</div>
<script >
var searchBoxWidth = $(".my-input-search").width();
$(".my-input-search").focusin(
function () {
$(".my-first-navbar").css("display","none");
$(".my-input-search").css("width","434px");
}
);
$(".my-input-search").focusout(
function () {
$(".my-first-navbar").css("display","block");
$(".my-input-search").css("width",searchBoxWidth);
}
);
</script>
</body>
</html>
2.
.dropdown-menu .sub-menu {
left: 100%;
position: absolute;
top: 0;
visibility: hidden;
margin-top: -1px;
}
.dropdown-menu li:hover .sub-menu {
visibility: visible;
}
.dropdown:hover .dropdown-menu {
display: block;
}
.nav-tabs .dropdown-menu, .nav-pills .dropdown-menu, .navbar .dropdown-menu {
margin-top: 0;
}
.navbar .sub-menu:before {
border-bottom: 7px solid transparent;
border-left: none;
border-right: 7px solid rgba(0, 0, 0, 0.2);
border-top: 7px solid transparent;
left: -7px;
top: 10px;
}
.navbar .sub-menu:after {
border-top: 6px solid transparent;
border-left: none;
border-right: 6px solid #fff;
border-bottom: 6px solid transparent;
left: 10px;
top: 11px;
left: -6px;
}
.mynav {
background: #222E2A;
height: 52px;
}
.navbar-primary {
background: #222E2A;
width:100%;
}
.nav > li > a {
color: #A4BFB4;
font-size: 16px;
font-weight: bold;
text-decoration: none;
}
.nav > li > a:hover {
background: #3F4F49;
}
.input-group-addon {
background: #3F4F49;
border:none;
position: static;
}
.my-input-search {
border:0;
background: #3F4F49;
outline-color: none;
}
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