Bootstrap导航栏汉堡包图标未垂直对齐

Question

我使用带有4.1.2引导程序的流利套件。

在navbar docs中（我想要这个是因为切换器在打开/关闭时更改了它的图标）我确实从#position部分获取了第二个示例。但是，汉堡包未垂直居中。我该如何解决？

汉堡栏错误的汉堡包：

我尝试删除padding，但没有帮助，我被卡住了。

<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.2/js/bootstrap.min.js"></script>
<script src="https://cdn.jsdelivr.net/gh/nespero/fluent-kit@1.3.0/js/fluent-kit.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet"/>
<link href="https://cdn.jsdelivr.net/gh/nespero/fluent-kit@1.2.0/css/fluent-kit.min.css" rel="stylesheet"/>

<nav class="navbar navbar-dark bg-dark py-2">
  <strong class="navbar-text">
    Navbar position example
  </strong>
  <button class="btn mi navbar-toggler  shadow-none mt-0" type="button" data-toggle="collapse" data-target="#navbar-position" aria-controls="navbar-position" aria-expanded="false" aria-label="Toggle navigation">
    <span class="sr-only">Toggle navbar submenu</span>
  </button>
  <div class="collapse navbar-collapse" id="navbar-position">
    <ul class="navbar-nav">
      <li class="nav-item active">
        <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Features</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Pricing</a>
      </li>
      <li class="nav-item">
        <a class="nav-link disabled" href="#">Disabled</a>
      </li>
    </ul>
  </div>
</nav>

Answer 1

从.btn删除<button>类

<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.2/js/bootstrap.min.js"></script>
<script src="https://cdn.jsdelivr.net/gh/nespero/fluent-kit@1.3.0/js/fluent-kit.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet"/>
<link href="https://cdn.jsdelivr.net/gh/nespero/fluent-kit@1.2.0/css/fluent-kit.min.css" rel="stylesheet"/>

<nav class="navbar navbar-dark bg-dark py-2">
  <strong class="navbar-text">
    Navbar position example
  </strong>
  <button class="mi navbar-toggler  shadow-none mt-0" type="button" data-toggle="collapse" data-target="#navbar-position" aria-controls="navbar-position" aria-expanded="false" aria-label="Toggle navigation">
    <span class="sr-only">Toggle navbar submenu</span>
  </button>
  <div class="collapse navbar-collapse" id="navbar-position">
    <ul class="navbar-nav">
      <li class="nav-item active">
        <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Features</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Pricing</a>
      </li>
      <li class="nav-item">
        <a class="nav-link disabled" href="#">Disabled</a>
      </li>
    </ul>
  </div>
</nav>

Answer 2

在您的CSS文件中添加以下CSS代码：

nav.navbar .navbar-toggler {
    line-height: 10px;
    padding: 0;
}

Answer 3

将此CSS添加到您的CSS文件中。

df1 <- structure(list(Categories = c("A1", "A2", "C", "B1", "A3", "B2"
 ), value = c(5L, 3L, 2L, 6L, 1L, 5L)), .Names = c("Categories", 
 "value"), class = "data.frame", row.names = c(NA, -6L))

Answer 4

您还可以使用transform：translateY对齐

.navbar .navbar-toggler {
   transform: translateY(-17%);
 }