刪除懸停背景下拉引導4

<li class="nav-item active dropdown"> 
     <a class="nav-link dropdown-toggle" href="#" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> 
      Dropdown link 
     </a> 
     <div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink"> 
      <a class="dropdown-item" href="#">Action</a> 
      <a class="dropdown-item" href="#">Another action</a> 
      <a class="dropdown-item" href="#">Something else here</a> 
     </div> 
     </li>

我已經寫了這個代碼來創建自舉（很容易）下拉現在我想，當我將鼠標懸停在下拉列表中的項目，以去除背景，但不知何故，他們總是保持白色。刪除懸停背景下拉引導4

這是CSS

.dropdown-menu{ 
    background-color: transparent; 
    border: transparent; 
    border: none; 
} 
.dropdown-menu .dropdown-item > li > a:hover { 
    background-image: none; 
    background-color: #000; 
}

來源

2017-05-07 Sander bakker

你想要哪種顏色？ –

沒有我想要它是tranparent @ this.girish –

你可以做一個jsfiddle嗎？ –

做

最簡單的方法，這是採取一種新的類中的下拉菜單和應用CSS

檢查這個小提琴，更新小提琴https://jsfiddle.net/rb87gwzj/4/或這個片段

.dropdown-menu{ 
 
    background-color: transparent; 
 
    border: transparent; 
 
    border: none; 
 
} 
 
.dropdown-menu .dropdown-item > li > a:hover { 
 
    background-image: none; 
 
    
 
    background-color: #000!important; 
 
} 
 

 
.navbar { 
 
    background: none; 
 
} 
 
.dropdown-content a:hover { 
 
    background-color: transparent; 
 
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js"></script> 
 
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> 
 
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" rel="stylesheet"/> 
 
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js"></script> 
 

 

 
<nav class="navbar navbar-toggleable-md navbar-light bg-faded"> 
 
    <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"> 
 
    <span class="navbar-toggler-icon"></span> 
 
    </button> 
 
    <a class="navbar-brand" href="index.html"> 
 
    <img src="images/logo.png" width="30" height="30" class="d-inline-block align-top" alt=""> 
 
    </a> 
 
    <div class="collapse navbar-collapse" id="navbarNav"> 
 
    <ul class="navbar-nav"> 
 
     <li class="nav-item active"> 
 
     <a class="nav-link" href="index.html">Home</a> 
 
     </li> 
 
     <li class="nav-item active dropdown"> 
 
     <a class="nav-link dropdown-toggle" href="#" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> 
 
      Projects 
 
     </a> 
 
     <div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink" > 
 
     <div class="dropdown-content"> 
 
     
 
     
 
      <a class="dropdown-item" href="#html">HTML5/CSS</a> 
 
      <a class="dropdown-item" href="#python">Python</a> 
 
      <a class="dropdown-item" href="#php">PHP</a> 
 
      <a class="dropdown-item" href="#java">Java</a> 
 
      <a class="dropdown-item" href="#csharp">C#</a> 
 
    </div> 
 
     </div> 
 
     </li> 
 
    </ul> 
 
    </div> 
 
</nav>

您在 dropdown-menu .dropdown-item > li > a:hover上應用了CSS，但是您重新結構不一樣，你沒有下拉菜單裏面的下拉菜單，沒有 li裏面的dropdown-item，告訴我你是否想讓我解釋更多

來源

2017-05-07 11:04:57

使用 background-color：transparent！important; 或使用默認情況下使用的相同顏色。你想改變的地方。

來源

2017-05-07 11:44:28 Super

刪除懸停背景下拉引導4

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