更改导航栏中引导程序图标栏的颜色

Question

我无法更改切换图标栏的颜色。我想将颜色更改为白色。

 <nav class="navbar navbar-toggleable-md navbar-light">
    <button class="navbar-toggler navbar-toggler-right" type="button"  style = "border: 2px solid #E0E0E0;" data-toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
        <span class="navbar-toggler-icon icon-bar" style = "color: white;"></span>
    </button>
    <a class="navbar-brand" href="#">SWAPNIL SARAF</a>
    <div class="collapse navbar-collapse" id="navbarNav">
        <ul class="navbar-nav ml-auto">
            <li class="nav-item active">
            <a class="nav-link" href="#">WORK <span class="sr-only">(current)</span></a>
            </li>
            <li class="nav-item">
            <a class="nav-link" href="#">INSPIRATIONS</a>
            </li>
            <li class="nav-item">
            <a class="nav-link" href="#">ABOUT</a>
            </li>
            <li class="nav-item">
            <a class="nav-link" href="#">CONTACT</a>
            </li>
        </ul>
    </div>
</nav>

样式.css

下面是我的 CSS 文件：

 .navbar .navbar-toggler .icon-bar{
   background-color: white !important;
}

原文由 swapnil saraf 发布，翻译遵循 CC BY-SA 4.0 许可协议

Answer 1

我检查了您的代码结构以及您的 css 代码无法正常工作的原因，因为 .navbar-toggle 类已从按钮代码中删除，如下所示：

 <button class=" navbar-toggler  navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">

所以这里添加类 navbar-toggle 因为bootstrap css就是在这个类的基础上写的。

 <button class=" navbar-toggle navbar-toggler  navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">

还要检查我尝试使用您的 html 代码的示例：

 .navbar .navbar-toggler .icon-bar {
  background: black !important;
}

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="http://netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script>

<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">

<nav class="navbar navbar-toggleable-md navbar-light">
  <button class="navbar-toggle navbar-toggler  navbar-toggler-right" type="button" style="border: 2px solid #E0E0E0;" data-toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
                <span class="navbar-toggler-icon icon-bar" ></span>
            </button>
  <a class="navbar-brand" href="#">SWAPNIL SARAF</a>
  <div class="collapse navbar-collapse" id="navbarNav">
    <ul class="navbar-nav ml-auto">
      <li class="nav-item active">
        <a class="nav-link" href="#">WORK <span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">INSPIRATIONS</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">ABOUT</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">CONTACT</a>
      </li>
    </ul>
  </div>
</nav>

原文由 Sahil Dhir 发布，翻译遵循 CC BY-SA 4.0 许可协议

Answer 2

我在这里注意到两个问题

1. 在样式.css

将 !important 替换为 !important

1. 像这样使用 css 类

.navbar-toggler-icon.icon-bar{ 背景色：白色！重要； }

谢谢，阿伦

原文由 Arun venkitachalam 发布，翻译遵循 CC BY-SA 3.0 许可协议