twitter-bootstrap Bootstrap 4 - 导航栏标题的使用
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Bootstrap 4 - Navbar Header usage
提问by Pablo Domínguez
I'm kind of new at bootstrap, I was taught alpha-4btw, and while making the navbaron my site i found out a problem when it collapses and shows the 3-row-lines-icon of the menu, it overlapped the logo with .navbar-brand. I resolved this just by adding pull-rightto it.
我是引导程序的新手，alpha-4顺便说一句，navbar我在我的网站上进行了教学，当它折叠并显示菜单的 3 行行图标时，我发现了一个问题，它将徽标与.navbar-brand. 我只是通过添加pull-right它来解决这个问题。
Looks like this now, it actually works...
现在看起来像这样，它实际上有效......
<nav class="navbar navbar-dark bg-inverse navbar-fixed-top" id="navbar">
<button class="navbar-toggler hidden-lg-up pull-right" type="button" data-toggle="collapse" data-target="#navbarContent"> ☰
</button>
<a class="navbar-brand" href="#">YO-Maps</a>
<div class="collapse navbar-toggleable-md" id="navbarContent">
<ul class="nav navbar-nav">
<li class="nav-item">
<a class="nav-link" href="#jumbotron">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#about">About</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#footer">Download</a>
</li>
</ul>
<form class="form-inline pull-sm-right">
<input class="form-control" type="email" placeholder="Email">
<input class="form-control" type="password" placeholder="Password">
<button class="btn btn-success" type="submit">Login</button>
</form>
</div>
</nav>
And while checking out bootstrap 3 (v 3.3.2), I discover in other examplesthis was't even needed, because I think the .navbar-header was present...
在检查 bootstrap 3 (v 3.3.2) 时，我发现在其他示例中甚至不需要这样做，因为我认为 .navbar-header 存在......
So my question is: Is this class important while implementing Bootstrap 4?The official docsdoesn't mention it and I actually try it in my code and doesn't make any difference...and Does it really makes "something" appart of being a sematic tag in Bootstrap 3?
所以我的问题是：这个类在实现 Bootstrap 4 时重要吗？在官方的文档没有提到它，其实我尝试在我的代码，并没有任何区别...和它真的使的是在引导3思迈特标签“东西” APPART？
回答by Russell Walker
Nope, navbar-header isn't included anywhere in Bootstrap 4. navbar-brand and navbar-toggler no longer need to be wrapped in their own div.
不，导航栏标题未包含在 Bootstrap 4 中的任何地方。导航栏品牌和导航栏切换器不再需要包含在它们自己的 div 中。
