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javascript - 如何在 Bootstrap 导航栏上单击 Firefox 时删除白色圆圈框

转载 作者:行者123 更新时间:2023-11-27 23:38:25 25 4
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我有以下代码:

.navbar.navbar-inverse .navbar-brand {
color: #fff;
}
.navbar.navbar-inverse .navbar-nav > li > a {
color: #fff;
}
<!DOCTYPE html>
<html lang="en">

<head>
<title>Bootstrap Case</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
</head>

<body>

<nav class="navbar navbar-inverse">
<div class="container-fluid">
<div class="navbar-header">
<a class="navbar-brand" href="#">WebSiteName</a>
</div>
<div>
<ul class="nav navbar-nav">
<li class="active"><a href="#">About</a>
</li>
<li class="dropdown"><a class="dropdown-toggle" data-toggle="dropdown" href="#">Page 1 <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="#">Help</a>
</li>
<li><a href="#">Contact/a>
</li>

</ul>
</li>
<li><a href="#">Page 2</a>
</li>
<li><a href="#">Page 3</a>
</li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li><a href="#"><span class="glyphicon glyphicon-user"></span> Sign Up</a>
</li>
<li><a href="#"><span class="glyphicon glyphicon-log-in"></span> Login</a>
</li>
</ul>
</div>
</div>
</nav>

<div class="container">
<h3>Right Aligned Navbar</h3>
<p>some text.</p>
</div>

</body>

</html>

现在,如果您在 Firefox 中执行上述代码并单击关于。你会看到这样的东西:

enter image description here

如何去除白色圆圈框?在 Safari 或 Chrome 上没有问题。

最佳答案

这是由默认的 Bootstrap CSS 规则引起的:

a:focus {
outline: thin dotted;
outline-offset: -2px;
}

您需要将 outline: 0 设置为焦点。如果你想专门在导航栏元素上删除它,你可以使用代码片段中的代码。

否则,用 a:focus { outline: 0 none; 覆盖所有链接。 检查自定义 CSS 优先顺序是否更高,即放在 Bootstrap 文件之后。

.navbar.navbar-inverse .navbar-brand {
color: #fff;
}
.navbar.navbar-inverse .navbar-nav > li > a {
color: #fff;
}

/* Added code */
.navbar-inverse .navbar-nav > .active > a:focus {
outline: 0;
}
<!DOCTYPE html>
<html lang="en">

<head>
<title>Bootstrap Case</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
</head>

<body>

<nav class="navbar navbar-inverse">
<div class="container-fluid">
<div class="navbar-header">
<a class="navbar-brand" href="#">WebSiteName</a>
</div>
<div>
<ul class="nav navbar-nav">
<li class="active"><a href="#">About</a>
</li>
<li class="dropdown"><a class="dropdown-toggle" data-toggle="dropdown" href="#">Page 1 <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="#">Help</a>
</li>
<li><a href="#">Contact/a>
</li>

</ul>
</li>
<li><a href="#">Page 2</a>
</li>
<li><a href="#">Page 3</a>
</li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li><a href="#"><span class="glyphicon glyphicon-user"></span> Sign Up</a>
</li>
<li><a href="#"><span class="glyphicon glyphicon-log-in"></span> Login</a>
</li>
</ul>
</div>
</div>
</nav>

<div class="container">
<h3>Right Aligned Navbar</h3>
<p>some text.</p>
</div>

</body>

</html>

关于javascript - 如何在 Bootstrap 导航栏上单击 Firefox 时删除白色圆圈框,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/32780000/

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