Question

我的移动下拉菜单出现了奇怪的问题。单击切换按钮时，菜单会在按钮下方短暂滚动，然后移动到正确的位置。

它也不总是运行，有时点击它没有效果。

您可以通过查看此页面的移动版本（其右上角的汉堡包图标激活的菜单）看到它的实际效果：

http://u1f8aki.nixweb23.dandomain.dk

以下是创建菜单的代码：

                    <div class="mobilenav">
                            <div class="navbar-header">

                                <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="primary-menu"><?php esc_html_e( '', 'mentordanmark' ); ?>
                                  <span class="icon-bar top-bar"></span>
                                  <span class="icon-bar middle-bar"></span>
                                  <span class="icon-bar bottom-bar"></span>
                                </button>

                                <div id="navbar" class="navbar-collapse collapse">
                                    <?php
                                        wp_nav_menu( array(
                                            'theme_location' => 'menu-1',
                                            'menu_id'        => 'primary-menu-nav', 
                                            'container_class' => 'mobileDropdownmenu',
                                            'menu_id'             => ' ',
                                        ) );
                                    ?>
                                </div>

                                <div id="blivMentorMenu" class="BlivMentor-Login-Menu" style="display: none">
                                    <?php wp_nav_menu(
                                        'menu=secondary-menu&after=<li class="menu-divider">|</li>'
                                        ); ?>   
                                </div>

和CSS：

/* To get the menu to appear */
button.navbar-toggle.collapsed {
    display: flex;
    flex-direction: column;
}
button.navbar-toggle {
    display: flex;
    flex-direction: column;
    margin-left: 2em;
}
.mobilenav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 5.7em;
    width: 100%;
}

    #primary-menu-nav {
        width: 100%;
        position: absolute;
        left: 0;
        top: 5.7em;
        border-bottom: 1px solid #e0e4ea;
        padding-top: 4em;
    }

    #primary-menu-nav a {
        margin: 0;
        padding: 1em;
        min-width: 15em;
        text-align: center;
    }

    button.menu-toggle {
        border: 0;
        font-size: 20px;
        width: 1em;
        height: 1em;
        position: absolute;
        top: 1.4em;
        overflow: hidden !important;
    }

    button.menu-toggle:active, button.menu-toggle:focus, a.btn-navbar:active, a.btn-navbar:focus {
        border: 0 !important;
        outline: 0;
    }

    a.btn-navbar {
        display: flex;
        position: absolute;
        top: 2.5em;
        height: 3em;
        width: 3em;
        padding: .3em 0;
        flex-direction: column;
    }

    span.icon-bar {
        background: #000;
        height: .3em;
        width: 100%;
        margin: .2em;
    }

Answer 1

如果要使用Bootstrap 4 css，则需要使用Bootstrap 4代码。

Bootstrap 3代码与Bootstrap 4 css不兼容。

这是基本的Bootstrap 4导航栏的样子：

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">

<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>

<nav class="navbar navbar-expand-lg navbar-light bg-light">
  <a class="navbar-brand" href="#">Navbar</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 mr-auto">
      <li class="nav-item active">
        <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Link</a>
      </li>
      <li class="nav-item dropdown">
        <a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
          Dropdown
        </a>
        <div class="dropdown-menu" aria-labelledby="navbarDropdown">
          <a class="dropdown-item" href="#">Action</a>
          <a class="dropdown-item" href="#">Another action</a>
          <div class="dropdown-divider"></div>
          <a class="dropdown-item" href="#">Something else here</a>
        </div>
      </li>
      <li class="nav-item">
        <a class="nav-link disabled" href="#">Disabled</a>
      </li>
    </ul>
    <form class="form-inline my-2 my-lg-0">
      <input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">
      <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
    </form>
  </div>
</nav>

Bootstrap / Wordpress菜单错误

1 个答案: