twitter-bootstrap – Bootsrap页面冲突中的两个响应式导航栏

我试图重命名第二类的崩溃类名称,但它不起作用.你能不能让我知道我怎么能同时进行两次“导航崩溃崩溃而没有任何冲突？

<div class="navbar">
<div class="navbar-inner">
    <div class="container">
        <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="#">Candete</a>
        <div class="nav-collapse collapse">
            <!-- .nav,.navbar-search,.navbar-form,etc -->
            <ul class="nav">
                <li class="active"><a href="#">Home</a></li>
                <li><a href="#">Products</a></li>
                <li><a href="#">Contact Us</a></li>
                <li><a href="#">About Us</a></li>
                <li><a href="#">All Products</a></li>
            </ul>
        </div>
    </div>
</div>
</div>

<div class="navbar">
<div class="navbar-inner">
    <div class="container">
        <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="#">Product Category</a>
        <div class="nav-collapse collapse">
            <!-- .nav,etc -->
            <ul class="nav">
                <li><a href="#">Gold</a></li>
                <li><a href="#">Copper</a></li>
                <li><a href="#">Zinc</a></li>
                <li><a href="#">Metals</a></li>
                <li><a href="#">Other</a></li>
            </ul>
        </div>
    </div>
</div>