Question

当我将鼠标悬停在链接上时，我正在尝试为链接添加背景色并在我也将其悬停时更改社交媒体图标的颜色。

我已经寻找并尝试了很多我寻找的答案，但是当我尝试时，它仍然对我不起作用。

有人可以帮忙吗？非常感谢

<nav class="navbar navbar-expand-lg navbar-light bg-light">
    <a class="navbar-brand" href="#"> <img src="LOGO.png" class="img-responsive logo"></a>
  
  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarText" aria-controls="navbarText" aria-expanded="false" aria-label="Toggle navigation">
    <span class="navbar-toggler-icon"></span>
  </button>
  <div class="collapse navbar-collapse" id="navbarText">
    <ul class="navbar-nav mr-auto">
      <li class="nav-item">
        <a class="nav-link" href="#">Featured</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Brand new</a>
      </li>
    </ul>
    <a class="navbar-text" href="#">
      <img src="insta.png" width="30"height="30" alt="">
    </a>
    <a class="navbar-text" href="#">
      <img src="Twitter.png" width="30"height="30" alt="">
    </a>
    <a class="navbar-text" href="#">
      <img src="facebook.png" width="30"height="30" alt="">
    </a>
  </div>
</nav>

Answer 1

只需使用background-color选择器来更改悬停的菜单项的.nav-item:hover { background-color: red; } .navbar-text:hover { background-color: red; }属性，如下所示：

.nav-item:hover {
  background-color: red;
}

检查并运行以下代码段，以获取上述代码的实际示例：

<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/4.1.0/js/bootstrap.min.js"></script><link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css" rel="stylesheet"/>

<nav class="navbar navbar-expand-lg navbar-light bg-light">
    <a class="navbar-brand" href="#"> <img src="//picsum.photos/50/50" class="img-responsive logo"></a>
  
  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarText" aria-controls="navbarText" aria-expanded="false" aria-label="Toggle navigation">
    <span class="navbar-toggler-icon"></span>
  </button>
  <div class="collapse navbar-collapse" id="navbarText">
    <ul class="navbar-nav mr-auto">
      <li class="nav-item">
        <a class="nav-link" href="#">Featured</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Brand new</a>
      </li>
    </ul>
    <a class="navbar-text" href="#">
      <img src="insta.png" width="30"height="30" alt="">
    </a>
    <a class="navbar-text" href="#">
      <img src="Twitter.png" width="30"height="30" alt="">
    </a>
    <a class="navbar-text" href="#">
      <img src="facebook.png" width="30"height="30" alt="">
    </a>
  </div>
</nav>

public class Sources  
{
   public long[] SourceIds;
}


string jsonstring = " [\r\n {\r\n  \"SourceIds\": 20181234\r\n  }, \r\n 
{\r\n  \"SourceIds\": 20181234\r\n  },\r\n {\r\n  \"SourceIds\": 
20181234\r\n  }\r\n]"

Answer 2

尝试使用:hover

.nav-link:hover {
  background-color: #B10331;
}
.navbar-text:hover {
  background-color: #B10331;
}

如何在引导导航栏上添加背景悬停颜色？

2 个答案: