Question

我有这些清单项目。当活动标签更改为Page_1时，我希望<li>具有border-bottom: solid 1px #000;，而不是Bootstrap自己的样式/

<ul class="nav nav-tabs">

    <li><a data-toggle="tab" href="#Home" role="tabpanel" class="nav- 
    link active">Home</a>
    </li>

    <li><a data-toggle="tab" href="#Page_1" role="tabpanel" class="nav- 
    link">Page 1</a>
    </li>

</ul>

Answer 1

选择要覆盖的引导程序项，然后确保在样式文件中创建自己的引导程序类，该类文件在引导css文件加载后加载。单击一个选项卡以将其突出显示为活动，注意引导程序的顺序，然后记下自定义样式：

.nav-tabs .nav-item.show .nav-link, .nav-tabs .nav-link.active {
  background: moccasin;
  border-bottom: 2px solid green;
}

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <title>title</title>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css">
<style>
.nav-tabs .nav-item.show .nav-link, .nav-tabs .nav-link.active {
  background: moccasin;
  border-bottom: 2px solid green;
}
</style>
<link rel="stylesheet" href="style.css">
    <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>
    <script src="script.js"></script>
  </head>
  <body>
    <!-- page content -->
    <nav>
  <div class="nav nav-tabs" id="nav-tab" role="tablist">
    <a class="nav-item nav-link active" id="nav-home-tab" data-toggle="tab" href="#nav-home" role="tab" aria-controls="nav-home" aria-selected="true">Home</a>
    <a class="nav-item nav-link" id="nav-profile-tab" data-toggle="tab" href="#nav-profile" role="tab" aria-controls="nav-profile" aria-selected="false">Profile</a>
    <a class="nav-item nav-link" id="nav-contact-tab" data-toggle="tab" href="#nav-contact" role="tab" aria-controls="nav-contact" aria-selected="false">Contact</a>
  </div>
</nav>
<div class="tab-content" id="nav-tabContent">
  <div class="tab-pane fade show active" id="nav-home" role="tabpanel" aria-labelledby="nav-home-tab">...</div>
  <div class="tab-pane fade" id="nav-profile" role="tabpanel" aria-labelledby="nav-profile-tab">...</div>
  <div class="tab-pane fade" id="nav-contact" role="tabpanel" aria-labelledby="nav-contact-tab">...</div>
</div>
  </body>
</html>

当Bootstrap 4中的选项卡处于活动状态时，如何将其添加到选项卡中？

1 个答案: