CSS Bootstrap 4 导航栏，有 2 行
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Bootstrap 4 navbar with 2 rows
提问by Tom Michew
I have created a navbar with Bootstrap 4 alpha 6 that has a large brand/icon on the left, and 2 navbar-nav's with links to the right of the icon. One nav has links, and the other nav has icons. It's working exactly as I want except for one thing.
我创建了一个带有 Bootstrap 4 alpha 6 的导航栏，左侧有一个大品牌/图标，还有 2 个导航栏导航，图标右侧有链接。一个导航有链接，另一个导航有图标。除了一件事外，它完全按照我的意愿工作。
I'd like the 2 navbars to appear in 2 separate rows to the right of the icon. Like this:
我希望 2 个导航栏出现在图标右侧的 2 个单独的行中。像这样：
------------------------------------------------------
link link link link
brand-icon -------------------------------------------
icon icon icon
------------------------------------------------------
The mobile version will still show the links vertically as it does now. I've tried several different things with flexbox, but can't get it to work.
移动版本仍会像现在一样垂直显示链接。我已经用 flexbox 尝试了几种不同的东西，但无法让它工作。
Here is my code:
这是我的代码：
<nav class="navbar navbar-toggleable-md navbar-inverse bg-inverse">
<div class="container">
<button class="navbar-toggler navbar-toggler-right align-self-center mt-3" type="button" data-toggle="collapse" data-target="#navbarCollapse">
<span class="navbar-toggler-icon"></span>
</button>
<h1 class="py-2 ml-lg-2 mx-3"><a href="#"><i class="fa fa-envelope-open-o fa-lg" aria-hidden="true"></i></a></h1>
<div class="collapse navbar-collapse ml-lg-0 ml-3" id="navbarCollapse">
<ul class="navbar-nav">
<li class="nav-item active">
<a class="nav-link" href="#">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Product</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Shop</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">About</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Events</a>
</li>
</ul>
<ul class="navbar-nav">
<li class="nav-item">
<a class="nav-link pr-3" href="#"><i class="fa fa-facebook"></i></a>
</li>
<li class="nav-item">
<a class="nav-link pr-3" href="#"><i class="fa fa-instagram"></i></a>
</li>
<li class="nav-item">
<a class="nav-link pr-3" href="#"><i class="fa fa-twitter"></i></a>
</li>
</ul>
</div>
</div>
</nav>
回答by Zim
You can use the flex-columnflexbox utility class to stack the 2 navs vertically next to the icon. This sets flex-direction: columnon the navbar-collapsediv so that it's child elements stack vertically.
您可以使用flex-columnflexbox 实用程序类在图标旁边垂直堆叠 2 个导航。这flex-direction: column在navbar-collapsediv上设置，以便它的子元素垂直堆叠。
<nav class="navbar navbar-toggleable-md navbar-inverse bg-inverse">
<div class="container">
<button class="navbar-toggler navbar-toggler-right align-self-center mt-3" type="button" data-toggle="collapse" data-target="#navbarCollapse">
<span class="navbar-toggler-icon"></span>
</button>
<h1 class="py-2 ml-lg-2 mx-3"><a href="#"><i class="fa fa-envelope-o fa-lg mt-2" aria-hidden="true"></i></a></h1>
<div class="collapse navbar-collapse flex-column ml-lg-0 ml-3" id="navbarCollapse">
<ul class="navbar-nav">
<li class="nav-item active">
<a class="nav-link" href="#">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Product</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Shop</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">About</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Events</a>
</li>
</ul>
<ul class="navbar-nav flex-row mb-2">
<li class="nav-item">
<a class="nav-link py-1 pr-3" href="#"><i class="fa fa-facebook"></i></a>
</li>
<li class="nav-item">
<a class="nav-link py-1 pr-3" href="#"><i class="fa fa-instagram"></i></a>
</li>
<li class="nav-item">
<a class="nav-link py-1 pr-3" href="#"><i class="fa fa-twitter"></i></a>
</li>
</ul>
</div>
</div>
</nav>
Demo - Bootstrap 4 navbar with 2 rows
Here's another variation with the 2 rows and rightalign search form:
这是 2 行和右对齐搜索表单的另一种变体：
<nav class="navbar navbar-toggleable-md navbar-light bg-faded">
<button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarCollapse">
<span class="navbar-toggler-icon"></span>
</button>
<a class="navbar-brand my-auto" href="#">Brand</a>
<div class="collapse navbar-collapse flex-md-column" id="navbarCollapse">
<ul class="navbar-nav ml-auto small">
<li class="nav-item active">
<a class="nav-link" href="#">Shop</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Products</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Team</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">About</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Events</a>
</li>
</ul>
<form class="form-inline ml-auto">
...
</form>
</div>
</nav>
Demo - Navbar with 2 rows on right
Update for Bootstrap 4.0.0:
https://www.codeply.com/go/05hEHoiUvv
Bootstrap 4.0.0 更新：https:
//www.codeply.com/go/05hEHoiUvv
Here is an alternate scenario with 2 navbars with one mobile toggler
这是一个带有2 个导航栏和一个移动切换器的替代方案
Bootstrap 4.0 - Two NavBars that collapse into one toggle
How can I have Brand and Navbar on separate lines?
How move 'nav' element under 'navbar-brand' in my Navbar
How to place navbar below sticky navbar using bootstrap 4?
Bootstrap 4 Multiple fixed-top navbars
Bootstrap 4.0 - 折叠成一个切换的两个 NavBar
如何将 Brand 和 Navbar 放在不同的行上？
如何在我的导航栏中移动“导航栏品牌”下的“导航”元素
如何使用引导程序 4 将导航栏放置在粘性导航栏下方？
Bootstrap 4 多个固定顶部导航栏
回答by zackfett
The "variation with the 2 row aligned right" did not right-align the rows in Safari for me. I put the unordered lists in a new div with the flex-columnand ml-autoclasses.
“第 2 行右对齐的变化”对我来说并没有右对齐 Safari 中的行。我将无序列表放在一个带有flex-column和ml-auto类的新 div 中。
<nav class="navbar navbar-toggleable-md navbar-inverse bg-inverse">
<div class="container">
<button class="navbar-toggler navbar-toggler-right align-self-center mt-3" type="button" data-toggle="collapse" data-target="#navbarCollapse"> <span class="navbar-toggler-icon"></span> </button>
<h1 class="py-2 ml-lg-2 mx-3"><a href="#"><i class="fa fa-envelope-open-o fa-lg" aria-hidden="true"></i></a></h1>
<div class="collapse navbar-collapse ml-lg-0 ml-3" id="navbarCollapse">
<div class="flex-column ml-auto">
<ul class="navbar-nav">
<li class="nav-item active"> <a class="nav-link" href="#">Home</a> </li>
<li class="nav-item"> <a class="nav-link" href="#">Product</a> </li>
<li class="nav-item"> <a class="nav-link" href="#">Shop</a> </li>
<li class="nav-item"> <a class="nav-link" href="#">About</a> </li>
<li class="nav-item"> <a class="nav-link" href="#">Events</a> </li>
</ul>
<ul class="navbar-nav">
<li class="nav-item"> <a class="nav-link pr-3" href="#"><i class="fa fa-facebook"></i></a> </li>
<li class="nav-item"> <a class="nav-link pr-3" href="#"><i class="fa fa-instagram"></i></a> </li>
<li class="nav-item"> <a class="nav-link pr-3" href="#"><i class="fa fa-twitter"></i></a> </li>
</ul>
</div>
</div>
</div>
</nav>
