导航条

用到了boostrap导航条组件，但并不使用其默认的样式，便于修改。
响应式导航条效果：
代码：
<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title></title>
    <link href="css/bootstrap.min.css" rel="stylesheet">
    <style>
        .main-navigation{
            text-align: center;
            background: #ffffff;
            border-top: 1px solid #ebebeb;
            border-bottom: 3px solid #e1e1e1;
            margin-bottom: 35px;
        }
        .main-navigation .menu{
            margin: 0;
            padding: 0;
        }
        .menu li{
            list-style: none;
            display: inline-block;

        }
        .menu li a{
            display: block;
            text-decoration: none;
            outline:none;
            color: #505050;
            line-height: 4em;
            padding: 0 21px;
        }
        .menu .active{
            border-bottom: 3px solid #e67e22;
            margin-bottom: -2px;
        }
        .menu li a:hover{
            color:#e67e22;
        }
        .logo img{
            width: 200px;
            height: 56px;
            margin-right: -60px;
            margin-top: -10px;
        }
        .navbar-header span{
            font-size: 1.5em;
            line-height: 56px;
            height: 56px;
        }
        #mynav{
            float:left;
        }
    </style>
</head>
<body>
<script src="js/jquery-1.11.1.min.js"></script>
<script src="js/bootstrap.min.js"></script>
<script type="text/javascript">
    //jQuery改变鼠标样式
    $(function(){
        $('.menu li a').hover(function(){
                    $(this).addClass('active');
                },function(){
                    $(this).removeClass('active');
                }
        );
    });
</script>
    <nav class="main-navigation">
        <div class="container">
            <div class="row">
                <div class="col-md-12">
                    <div class="navbar-header">
                        <a href="#" class="logo">
                            <img src="img/logo.jpg">
                        </a>
                        <span>XXXX</span>

                        <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#mynav" 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>
                    </div>
                    <div class="collapse navbar-collapse" id="mynav">
                        <ul class="menu">
                            <li class="active"><a href="#" > 首页</a></li>
                            <li><a href="#"> 菜单1</a></li>
                            <li><a href="#"> 菜单2</a></li>
                            <li><a href="#"> 菜单3</a></li>
                            <li><a href="#"> 菜单4</a></li>

                        </ul>
                    </div>
                </div>
            </div>
        </div>
    </nav>

</body>
</html>
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