我对切换导航栏按钮有一些问题。它没有正确切换。当我按下按钮时,立即切换背景显示和消失。这是我的代码和Fiddle文件:
https://jsfiddle.net/85uyhbv6/
<!-- Navigation -->
<nav class="navbar navbar-expand-lg navbar-dark sticky-top bg-custom">
<div class="container-fluid">
<a class="navbar-brand" href="#">Brand</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent"
aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse text-center" id="navbarSupportedContent">
<ul class="navbar-nav navbar-center">
<li class="nav-item active">
<a class="nav-link" href="#top-img">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#games-tag">Games</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#team-tag">Team</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">About Us</a>
</li>
</ul>
</div>
</div>
</nav>
.bg-gray{
background-color: #b8b8b8;
}
.bg-custom{
background-color: #170c37;
}
.navbar-brand{
font-family: roboto-thin;
font-weight: bold;
font-size: 28px;
}
.navbar-dark .navbar-nav .nav-link{
font-family: roboto-thin;
font-weight: 700;
font-size: 16px;
}
.navbar-dark .navbar-nav .nav-item{
margin: 0 15px;
}
.navbar-center{
position: absolute;
left: 50%;
transform: translatex(-50%)
}
我认为绝对位置是造成此问题的原因,但是如果没有它,我将无法正确居中这些项目。 感谢您的帮助。
答案 0 :(得分:1)
删除position: absolute;
类中的.navbar-center
并插入position: relative;
.bg-gray{
background-color: #b8b8b8;
}
.bg-custom{
background-color: #170c37;
}
.navbar-brand{
font-family: roboto-thin;
font-weight: bold;
font-size: 28px;
}
.navbar-dark .navbar-nav .nav-link{
font-family: roboto-thin;
font-weight: 700;
font-size: 16px;
}
.navbar-dark .navbar-nav .nav-item{
margin: 0 15px;
}
.navbar-center{
/*position: absolute;*/
position: relative;
left: 50%;
transform: translatex(-50%)
}
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script>
<link href="../static/css/style.css" rel="stylesheet">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
</head>
<body>
<!-- Navigation -->
<nav class="navbar navbar-expand-lg navbar-dark sticky-top bg-custom">
<div class="container-fluid">
<a class="navbar-brand" href="#">Brand</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent"
aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse text-center" id="navbarSupportedContent">
<ul class="navbar-nav navbar-center">
<li class="nav-item active">
<a class="nav-link" href="#top-img">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#games-tag">Games</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#team-tag">Team</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">About Us</a>
</li>
</ul>
</div>
</div>
</nav>
</body>
答案 1 :(得分:1)
如果您从.navbar-center
中删除css,则它将按预期工作并且不会对菜单项的对齐产生任何影响,默认情况下,它们是对齐的。
或
只需在类min-height: 160px;
上添加.collapse.show
,它就会起作用。
这是工作示例:
.collapse.show {
min-height: 160px;
}
.bg-gray{
background-color: #b8b8b8;
}
.bg-custom{
background-color: #170c37;
}
.navbar-brand{
font-family: roboto-thin;
font-weight: bold;
font-size: 28px;
}
.navbar-dark .navbar-nav .nav-link{
font-family: roboto-thin;
font-weight: 700;
font-size: 16px;
}
.navbar-dark .navbar-nav .nav-item{
margin: 0 15px;
}
.navbar-center{
position: absolute;
left: 50%;
transform: translatex(-50%)
}
<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>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<!-- Navigation -->
<nav class="navbar navbar-expand-lg navbar-dark sticky-top bg-custom">
<div class="container-fluid">
<a class="navbar-brand" href="#">Brand</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent"
aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse text-center" id="navbarSupportedContent">
<ul class="navbar-nav navbar-center">
<li class="nav-item active">
<a class="nav-link" href="#top-img">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#games-tag">Games</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#team-tag">Team</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">About Us</a>
</li>
</ul>
</div>
</div>
</nav>