Bootstrap 4 navbar layout works using CDN, breaks using downloaded code

问题

Navbars load collapsed and improperly formatted using downloaded Bootstrap 4 Alpha code, but appear fine using the Bootstrap 4 Alpha CDN. Using the downloaded code is necessary for this project.

Navbar appearance using downloaded Bootstrap 4 Alpha code: View image

Navbar appearance using Bootstrap 4 Alpha CDN (the look I want): View image

This is my HTML, it doesn't change:

<nav class="navbar navbar-expand-lg navbar-light">
    <div class="container">
        <a class="navbar-brand" href="#">Brand</a>
        <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
            <span class="navbar-toggler-icon"></span>
        </button>
        <div class="collapse navbar-collapse" id="navbarSupportedContent">
            <ul class="navbar-nav ml-auto">
                <li class="nav-item active">
                    <a class="nav-link" href="#">About Us <span class="sr-only">(current)</span></a>
                </li>
                <li class="nav-item">
                    <a class="nav-link" href="#">Meet the Team</a>
                </li>
                <li class="nav-item">
                    <a class="nav-link" href="#">Log In</a>
                </li>
            </ul>
        </div>
    </div>
</nav>

No idea what's wrong or how to fix this. Anyone familiar with this issue? Thanks

回答1:

From Bootstrap 4 alpha 6 to beta, navbar-toggleable-* changed to navbar-expand-*, so if you're using navbar-expand-* with alpha it wouldn't work.

If you want it to work in alpha 6, it would be:

<nav class="navbar navbar-toggleable-md navbar-light">..</nav>

If you want it to work in beta, it would be:

<nav class="navbar navbar-expand-lg navbar-light">..</nav>

来源：https://stackoverflow.com/questions/45885492/bootstrap-4-navbar-layout-works-using-cdn-breaks-using-downloaded-code

标签

html