Question

我最近一直在使用Bootstrap，并且一直在使用它所包含的下拉菜单。我通常使用Chrome，但是在这种情况下，由于Chrome格式化下拉菜单的方式存在怪异问题，因此不得不切换到Edge。这是区别的一个例子。

Chrome ：

边缘：

我不太确定自己在做什么错，经过四处搜寻之后，我再也没有看到有同样问题的人。

<div class="dropdown">
  <button class="btn btn-secondary dropdown-toggle" type="button" id="dropdownMenuButton" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
    Test
  </button>
  <div class="dropdown-menu" aria-labelledby="dropdownMenuButton">
    <a class="dropdown-item" href="#">A</a>
    <a class="dropdown-item" href="#">B</a>
    <a class="dropdown-item" href="#">C</a>
  </div>
</div>

Answer 1

这种奇怪的情况发生在我身上。这是因为我使用了引导程序4但引用了引导程序3。检查差异：

引导程序4

 <!DOCTYPE html>
<html>
<head>

<title>Page Title</title>

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>

</head>
<body>
<div class="dropdown">
  <button class="btn btn-secondary dropdown-toggle" type="button" id="dropdownMenuButton" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
    Test
  </button>
  <div class="dropdown-menu" aria-labelledby="dropdownMenuButton">
    <a class="dropdown-item" href="#">A</a>
    <a class="dropdown-item" href="#">B</a>
    <a class="dropdown-item" href="#">C</a>
  </div>
</div>
</body>
</html>

Bootstrap 3

<!DOCTYPE html>
<html>
<head>

<title>Page Title</title>

<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">

<!-- jQuery library -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<!-- Latest compiled JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
<div class="dropdown">
  <button class="btn btn-secondary dropdown-toggle" type="button" id="dropdownMenuButton" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
    Test
  </button>
  <div class="dropdown-menu" aria-labelledby="dropdownMenuButton">
    <a class="dropdown-item" href="#">A</a>
    <a class="dropdown-item" href="#">B</a>
    <a class="dropdown-item" href="#">C</a>
  </div>
</div>
</body>
</html>

Answer 2

将下拉菜单更改为下拉菜单内容。

<div class="dropdown">
    <button class="btn btn-secondary dropdown-toggle" type="button" id="dropdownMenuButton" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
        Test
      </button>
      <div class="dropdown-content" aria-labelledby="dropdownMenuButton">
        <a class="dropdown-item" href="#">A</a>
        <a class="dropdown-item" href="#">B</a>
        <a class="dropdown-item" href="#">C</a>
      </div>
</div>

Bootstrap-Chrome中的下拉菜单格式不正确

2 个答案: