带 2 行的 Bootstrap 4 导航栏
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【中文标题】带 2 行的 Bootstrap 4 导航栏【英文标题】：Bootstrap 4 navbar with 2 rows 【发布时间】：2017-07-26 21:12:30 【问题描述】：我使用 Bootstrap 4 alpha 6 创建了一个导航栏，左侧有一个大品牌/图标，图标右侧有 2 个导航栏导航。一个导航有链接，另一个导航有图标。它完全按照我的意愿工作，除了一件事。
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
------------------------------------------------------
移动版仍会像现在一样垂直显示链接。我用 flexbox 尝试了几种不同的方法，但无法让它工作。
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>
【问题讨论】：
【参考方案1】：您可以使用flex-column flexbox 实用程序类将 2 个导航垂直堆叠在图标旁边。这会将flex-direction: column 设置在navbar-collapse div 上，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
这是另一种 2 行和 右 对齐搜索表单的变体：
<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
Bootstrap 4.0.0 更新：https://www.codeply.com/go/05hEHoiUvv
这是2 navbars with one mobile toggler 的替代方案
Bootstrap 4.0 - Two NavBars that collapse into one toggleHow can I have Brand and Navbar on separate lines?How move 'nav' element under 'navbar-brand' in my NavbarHow to place navbar below sticky navbar using bootstrap 4?Bootstrap 4 Multiple fixed-top navbars
【讨论】：
第二个 Codeply 的第二个菜单（社交媒体）有什么办法可以占据中/大屏幕的整个宽度？我已经尽我所能，但没有成功。 如果你有一个固定的导航栏 - 你怎么有两个栏？ 【参考方案2】：对我来说，“2 行右对齐的变体”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>
【讨论】：
这是一个问题还是一个答案？ @Christoph 两个，我猜。【参考方案3】：<template>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<div class="container-fluid">
<a class="navbar-brand col-lg-1" href="#">
<img src="../assets/logo.png" class="d-inline-block align-text-top">
SMS-WEB
</a>
<!--me-auto mb-2 mb-lg-0 -->
<div class="collapse navbar-collapse flex-column ml-lg-0 ml-3 col-lg-11" id="navbarSupportedContent">
<ul class="navbar-nav col-lg-12 " >
<li class="nav-item col-lg-8">
<app-searchbox class=""></app-searchbox>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button></li>
<li class="nav-item " style="display:inline-flex;">
<span style="font-size: 2em; color: Tomato;" class="pr-2 text-wrap">
<fa icon="user" class=""/></span>
<div style="display:block">
<div class="row-1 " style="font-size:13px">
<a class="nav-link active p-0" href="#">Hello, Sign in</a>
</div>
<div class="row-2" style="font-size:15px"><span>My Account</span></div>
</div>
</li>
<li class="nav-item ">
<span style="font-size: 2em; color: Tomato;" class="pr-2 pl-3 text-wrap">
<fa icon="heart" class=""/></span>
</li>
<li class="nav-item " style="display:inline-flex;" id="nav-cart" >
<span style="font-size: 2em; color: Tomato;" class="pl-2 pr-2 text-wrap rounded-circle" >
<fa :icon="['fas', 'cart-plus']"></fa></span>
<div style="display:block">
<div class="row-1" style="font-size:13px">
<a class="nav-link active p-0" href="#">My cart</a>
</div>
<div class="row-2" style="font-size:15px" ><span>Rs: 2500/=</span>
</div>
</div>
<app-dropcart id="drop-cart"/>
</li>
</ul>
<ul class="navbar-nav flex-row mb-2 col-lg-12" >
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-bs-toggle="dropdown" aria-expanded="false">
Dropdown
</a>
<ul class="dropdown-menu" aria-labelledby="navbarDropdown">
<li><a class="dropdown-item" href="#">Action</a></li>
<li><a class="dropdown-item" href="#">Another action</a></li>
<li><hr class="dropdown-divider"></li>
<li><a class="dropdown-item" href="#">Something else here</a></li>
</ul>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
</ul>
</div>
</div>
</nav>
</template>
<script>
import searchbox from '@/components/search.vue'
import dropCart from '@/components/drop-cart.vue'
export default
name: 'navbar',
props:
msg: String
,
components:
'app-searchbox':searchbox,
'app-dropcart':dropCart
</script>
<style lang="sass">
</style>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<div class="container-fluid">
<a class="navbar-brand col-lg-1" href="#">
<img src="../assets/logo.png" class="d-inline-block align-text-top">
SMS-WEB
</a>
<!--me-auto mb-2 mb-lg-0 -->
<div class="collapse navbar-collapse flex-column ml-lg-0 ml-3 col-lg-11" id="navbarSupportedContent">
<ul class="navbar-nav col-lg-12 " >
<li class="nav-item col-lg-8">
<div class="container ">
<form class="d-flex">
<input class="form-control rounded-0 ml-5" type="search" placeholder="Search product here..." aria-label="Search">
<button class="btn btn-outline-success rounded-0" type="submit">Search</button>
</form>
</div>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button></li>
<li class="nav-item " style="display:inline-flex;">
<span style="font-size: 2em; color: Tomato;" class="pr-2 text-wrap">
<i class="fas fa-cart-plus"></i></span>
<div style="display:block">
<div class="row-1 " style="font-size:13px">
<a class="nav-link active p-0" href="#">Hello, Sign in</a>
</div>
<div class="row-2" style="font-size:15px"><span>My Account</span></div>
</div>
</li>
<li class="nav-item ">
<span style="font-size: 2em; color: Tomato;" class="pr-2 pl-3 text-wrap">
<i class="fas fa-cart-plus"></i></span>
</li>
<li class="nav-item " style="display:inline-flex;" id="nav-cart" >
<span style="font-size: 2em; color: Tomato;" class="pl-2 pr-2 text-wrap rounded-circle" >
<fa :icon="['fas', 'cart-plus']"></fa></span>
<div style="display:block">
<div class="row-1" style="font-size:13px">
<a class="nav-link active p-0" href="#">My cart</a>
</div>
<div class="row-2" style="font-size:15px" ><span>Rs: 2500/=</span>
</div>
</div>
<app-dropcart id="drop-cart"/>
</li>
</ul>
<ul class="navbar-nav flex-row mb-2 col-lg-12" >
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-bs-toggle="dropdown" aria-expanded="false">
Dropdown
</a>
<ul class="dropdown-menu" aria-labelledby="navbarDropdown">
<li><a class="dropdown-item" href="#">Action</a></li>
<li><a class="dropdown-item" href="#">Another action</a></li>
<li><hr class="dropdown-divider"></li>
<li><a class="dropdown-item" href="#">Something else here</a></li>
</ul>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
</ul>
</div>
</div>
</nav>
<!-- help http://wa.me/+94711308100 -->
【讨论】：
请在您的回答中提供更多详细信息。正如目前所写的那样，很难理解您的解决方案。以上是关于带 2 行的 Bootstrap 4 导航栏的主要内容，如果未能解决你的问题，请参考以下文章
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