防止项目在引导程序 4 导航栏切换中折叠
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【中文标题】防止项目在引导程序 4 导航栏切换中折叠【英文标题】：Prevent items from being collapsed in bootstrap 4 navbar toggle 【发布时间】：2018-09-11 00:54:19 【问题描述】：我有一个 bootstrap 4 导航栏。在这个导航栏中，我有一个字体很棒的图标购物车，当页面通过最大宽度值时，我不想切换（进入那 3 行菜单） （来自引导程序的默认响应式导航栏）。我想留在菜单栏附近。我该怎么做？ PS：我会放三个！字体真棒图标可以帮助您看到它。
html：
<nav class="navbar navbar-expand-lg navbar-dark bg-dark fixed-top">
<a class="navbar-brand" href="index.php">English Park Cuisine</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNavDropdown" aria-controls="navbarNavDropdown" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarNavDropdown">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" href="index.php">Acasa<span class="sr-only">(current)</span></a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Meniu
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<a class="dropdown-item" href="meniu.php">Pizza</a>
<a class="dropdown-item" href="#">Paste</a>
<a class="dropdown-item" href="#">Supe</a>
<a class="dropdown-item" href="#">Ciorbe</a>
<a class="dropdown-item" href="#">Desert</a>
</div>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Contact</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<p class="dropdown-item">0746117702</p>
<p class="dropdown-item">0742112452</p>
<p class="dropdown-item">0735212352</p>
</div>
</li>
</ul>
!!!<a href="#"><i class="fas fa-shopping-cart fa-lg" style="color: white;"></i></a>
<ul class="navbar-nav">
<li class="nav-item">
<a class="nav-link" href="#">Login</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Register</a>
</li>
</ul>
</div>
【问题讨论】：
【参考方案1】：您需要将不可折叠的项目分组到一个 div 中，然后使用间距和顺序实用程序根据需要对其进行对齐。
https://www.codeply.com/go/SJia0JtI1T
<nav class="navbar navbar-expand-lg navbar-dark bg-dark fixed-top">
<a class="navbar-brand" href="#">English Park Cuisine</a>
<div class="d-flex order-lg-1 ml-auto pr-2">
<a href="#" class="navbar-text"><i class="fa fa-shopping-cart fa-lg" style="color: white;"></i></a>
<ul class="navbar-nav flex-row">
<li class="nav-item mx-2 mx-lg-0">
<a class="nav-link" href="#">Login</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Register</a>
</li>
</ul>
</div>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNavDropdown" aria-controls="navbarNavDropdown" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarNavDropdown">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" href="index.php">Acasa<span class="sr-only">(current)</span></a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Meniu
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<a class="dropdown-item" href="meniu.php">Pizza</a>
<a class="dropdown-item" href="#">Paste</a>
<a class="dropdown-item" href="#">Supe</a>
<a class="dropdown-item" href="#">Ciorbe</a>
<a class="dropdown-item" href="#">Desert</a>
</div>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Contact</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<p class="dropdown-item">0746117702</p>
<p class="dropdown-item">0742112452</p>
<p class="dropdown-item">0735212352</p>
</div>
</li>
</ul>
</div>
</nav>
相关：Bootstrap 4 - Navbar items outside the collapse
【讨论】：
谢谢你，伙计！这是答案。因为我没有足够的声誉，所以我无法投票赞成您的回复。 我还有一个问题，我真的想不通 -.- 我怎样才能保持完全相同的位置，我的意思是购物车、登录、注册，但是当屏幕太小时，我只希望购物车留在导航栏上。请帮帮我好吗？【参考方案2】：将您的购物车移出导航折叠 div 并将其嵌套，导航折叠在一个新的 div 中。然后相应地设置购物车的样式，但它不会随着导航折叠而消失。
<nav class="navbar navbar-expand-lg navbar-dark bg-dark fixed-top">
<a class="navbar-brand" href="index.php">English Park Cuisine</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNavDropdown" aria-controls="navbarNavDropdown" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div> <!-- New Div !-->
<div class="collapse navbar-collapse" id="navbarNavDropdown">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" href="index.php">Acasa<span class="sr-only">(current)</span></a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Meniu
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<a class="dropdown-item" href="meniu.php">Pizza</a>
<a class="dropdown-item" href="#">Paste</a>
<a class="dropdown-item" href="#">Supe</a>
<a class="dropdown-item" href="#">Ciorbe</a>
<a class="dropdown-item" href="#">Desert</a>
</div>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Contact</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<p class="dropdown-item">0746117702</p>
<p class="dropdown-item">0742112452</p>
<p class="dropdown-item">0735212352</p>
</div>
</li>
</ul>
<ul class="navbar-nav">
<li class="nav-item">
<a class="nav-link" href="#">Login</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Register</a>
</li>
</ul>
</div>
<!-- move the anchor outside of the original div but nested inside the new div !-->
!!!<a href="#"><i class="fas fa-shopping-cart fa-lg" style="color: white;"></i></a>
</div>
【讨论】：
它工作得不是很好。它会将切换菜单栏移动到中心。以上是关于防止项目在引导程序 4 导航栏切换中折叠的主要内容，如果未能解决你的问题，请参考以下文章