Bootstrap 4 Navbar下拉菜单项向右 [英] Bootstrap 4 Navbar Dropdown Menu Items Right

问题描述

如下面的图片所示，当我单击响铃图标时，该图标的右下角会出现一个下拉菜单.我希望此下拉菜单显示在左下角而不是右下角.我该怎么办?

As you see in the picture below, when I click on the bell icon, a dropdown menu appears at the bottom-right of the icon. I want this dropdown menu to appear at bottom-left instead of bottom-right. What should I do?

如果您想查看我的代码，它是用php编写的:

If you want to see my code, it's written with php:

function navigation(){
    $output = "";
    $icons = ["user","bell","envelope","commenting"];
    $rows = [2,5,5,5];
    for ($i=0; $i < count($icons) ; $i++) {
      $output .= '<div class="dropdown">';
      $output .= '<a class="nav-item nav-link" data-toggle="dropdown">';
      $output .= '<i class="fa fa-'.$icons[$i].'"></i></a>';
      $output .= '<div class="dropdown-menu text-right">';
      for ($j=0; $j < $rows[$i] ; $j++) {
        $output .= '<a href="#" class="dropdown-item">'.($j+1).'</a>';
      }
      $output .= '</div>';
      $output .= '</div>';
    }
    return $output;
  }

然后，此输出将在html文件中回显:

And then, this output will be echoed in an html file:

<nav class="navbar">
  <div class="container">
    <div class="navbar-nav d-flex flex-row">
      <?= navigation() ?>
    </div>
  </div>
</nav>

推荐答案

使用dropdown-menu-right类将菜单内的项目对齐..

Use the dropdown-menu-right class to align the items inside the menu right..

    <div class="dropdown-menu dropdown-menu-right text-right">
        <a class="dropdown-item" href="#">Link</a>
        <a class="dropdown-item" href="#">Link</a>
        <a class="dropdown-item" href="#">Link</a>
    </div>

http://codeply.com/go/6Mf9aK0P8G

这篇关于Bootstrap 4 Navbar下拉菜单项向右的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！