我修改了帖子，按照@Bruno 的建议，在导航栏的右侧添加了一个下拉菜单.它需要反转它的 left 和 right 属性.我在示例代码的开头添加了一个额外的 css 片段. 请注意，当您单击 Run code snippet 按钮时，该示例显示了移动版本.要查看桌面版本，您必须点击 Expand snippet 按钮.
.ml-auto .dropdown-menu {左:自动！重要；右:0px；}
在您的样式表中包含它应该可以解决问题.
I just switched to bootstrap 4 and reworking all my html and scss to work with it and I cant seem to find how to put a group of nav-items on the right side of the navbar. This is my navbar code:
Create another <ul class="navbar-nav ml-auto"> for the navbar items you want on the right. ml-auto will pull your navbar-nav to the right where mr-auto will pull it to the left.
Tested against Bootstrap v4.5.2
<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css"/>
<style>
/* Stackoverflow preview fix, please ignore */
.navbar-nav {
flex-direction: row;
}
.nav-link {
padding-right: .5rem !important;
padding-left: .5rem !important;
}
/* Fixes dropdown menus placed on the right side */
.ml-auto .dropdown-menu {
left: auto !important;
right: 0px;
}
</style>
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-dark bg-primary rounded">
<a class="navbar-brand" href="#">Navbar</a>
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link">Left Link 1</a>
</li>
<li class="nav-item">
<a class="nav-link">Left Link 2</a>
</li>
</ul>
<ul class="navbar-nav ml-auto">
<li class="nav-item">
<a class="nav-link">Right Link 1</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 on Right</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action with a lot of text inside of an item</a>
</div>
</li>
</ul>
</nav>
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"></script>
</body>
</html>
As you can see additional styling rules have been added to account for some oddities in Stackoverflows preview box.
You should be able to safely ignore those rules in your project.
As of v4.0.0 this seems to be the official way to do it.
EDIT: I modified the Post to include a dropdown placed on the right side of the navbar as suggested by @Bruno. It needs its left and right attributes to be inverted. I added an extra snippet of css to the beginning of the example code.
Please note, that the example shows the mobile version when you click the Run code snippet button. To view the desktop version you must click the Expand snippet button.
.ml-auto .dropdown-menu {
left: auto !important;
right: 0px;
}
Including this in your stylesheet should do the trick.
