我有问题要将元素浮动到引导程序导航栏内的右侧,我需要应用float:右边的选项1和选项2元素,以及中心搜索输入,我尝试了!important
规则,但仍然无法正常工作,当内容折叠并单击导航栏切换按钮时,它会从左侧移动一些px。
编辑:我还需要按以下顺序折叠时显示导航栏:品牌 - 搜索输入 - Toggler按钮。以及搜索输入下的切换按钮的内容。
以下是相关代码:
.navbar{
background-image: cornflowerblue;
}
#mainNav{
border: 5px solid black;
margin: 3%;
background-color: white;
}
body{
background-color: grey;
}
#navContent{
background-color: white;
margin: 3%;
}
#final{
border: 5px solid black;
margin: 3%;
background-color: white;
}
#searchForm{
margin: auto;
}
#test{
text-align: center;
border: 5px solid black;
float: right;
}
<head>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/css/bootstrap.min.css" integrity="sha384-/Y6pD6FV/Vv2HJnA6t+vslU6fwYXjCFtcEpHbNJ0lyAFsXTsjBbfaDjzALeQsN6M" crossorigin="anonymous">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
</head>
<body>
<div class="container-fluid">
<section class="row" id="mainNav">
<nav class="navbar navbar-expand-xs rounded">
<a class="navbar-brand" href="#">Brand</a>
<form class="form-inline" id="searchForm" role="search">
<div class="input-group">
<input class="form-control" type="text" placeholder="Search">
<div class="input-group-btn">
<button class="btn btn-secondary" type="button"><i class="fa fa-search"></i></button>
</div>
</div>
</form>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navToggler" aria-controls="navToggler" aria-expanded="false" aria-label="Toggle navigation">
<i class="fa fa-bars"></i>
</button>
<div id="test">
<div class="collapse navbar-collapse" id="navToggler">
<ul class="navbar-nav">
<li class="nav-item"><a class="nav-link" href="#">Option 1</a></li>
<li class="nav-item"><a class="nav-link" href="#">Option 2</a></li>
</ul>
</div>
</div>
</nav>
</section>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.11.0/umd/popper.min.js" integrity="sha384-b/U6ypiBEHpOf/4+1nzFpr53nxSS+GLCkfwBdFNTxtclqqenISfwAzpKaMNFNmj4" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/js/bootstrap.min.js" integrity="sha384-h0AbiXch4ZDo7tp9hKZ4TsHbi047NrKGLO3SEJAg45jXxnGIfYzk4Si90RDIqNm1" crossorigin="anonymous"></script>
<script src="js/index.js"></script>
</body>
答案 0 :(得分:2)
只需在下面添加<div class="col-md-12"></div>
部分就可以了。
.navbar{
background-image: cornflowerblue;
}
#mainNav{
border: 5px solid black;
margin: 3%;
background-color: white;
}
body{
background-color: grey;
}
#navContent{
background-color: white;
margin: 3%;
}
#final{
border: 5px solid black;
margin: 3%;
background-color: white;
}
#searchForm{
margin: auto;
}
#test{
text-align: center;
border: 5px solid black;
float: right;
}
&#13;
<head>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/css/bootstrap.min.css" integrity="sha384-/Y6pD6FV/Vv2HJnA6t+vslU6fwYXjCFtcEpHbNJ0lyAFsXTsjBbfaDjzALeQsN6M" crossorigin="anonymous">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
</head>
<body>
<div class="container-fluid">
<section class="row" id="mainNav">
<div class="col-md-12">
<nav class="navbar rounded">
<a class="navbar-brand" href="#">Brand</a>
<form class="form-inline" id="searchForm" role="search">
<div class="input-group">
<input class="form-control" type="text" placeholder="Search">
<div class="input-group-btn">
<button class="btn btn-secondary" type="button"><i class="fa fa-search"></i></button>
</div>
</div>
</form>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navToggler" aria-controls="navToggler" aria-expanded="false" aria-label="Toggle navigation">
<i class="fa fa-bars"></i>
</button>
<div id="test">
<div class="collapse navbar-collapse" id="navToggler">
<ul class="nav navbar-nav">
<li class="nav-item"><a class="nav-link" href="#">Option 1</a></li>
<li class="nav-item"><a class="nav-link" href="#">Option 2</a></li>
</ul>
</div>
</div>
</nav>
</div>
</section>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.11.0/umd/popper.min.js" integrity="sha384-b/U6ypiBEHpOf/4+1nzFpr53nxSS+GLCkfwBdFNTxtclqqenISfwAzpKaMNFNmj4" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/js/bootstrap.min.js" integrity="sha384-h0AbiXch4ZDo7tp9hKZ4TsHbi047NrKGLO3SEJAg45jXxnGIfYzk4Si90RDIqNm1" crossorigin="anonymous"></script>
<script src="js/index.js"></script>
</body>
&#13;
答案 1 :(得分:0)
如果您想在Bootstrap 4中使用大型菜单(例如,针对Boostrap 3的yamm),我使用flexbox成功了:
<!-- adapted from bs-repo basic navbar example code -->
<nav id="navbar" class="navbar navbar-expand-lg navbar-light bg-light">
<a class="navbar-brand" href="#">Navbar</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" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="http://example.com"
id="navbarDropdownMenuLink" data-toggle="dropdown"
aria-haspopup="true" aria-expanded="false">Dropdown link</a>
<div class="dropdown-menu"
aria-labelledby="navbarDropdownMenuLink">
<ul class="d-md-inline-flex flex-md-row">
<li class="dropdown-item">
<ul class="d-md-inline-flex flex-md-column">
<li class="dropdown-item"><a href="#">Action</a></li>
<li class="dropdown-item"><a href="#">Another action</a></li>
<li class="dropdown-item"><a href="#">Something else here</a></li>
</ul>
</li>
<li class="dropdown-item">
...
</li>
<li class="dropdown-item">
...
</li>
</ul>
</div>
</li>
</ul>
<form class="form-inline my-2 my-lg-0">
<input class="form-control mr-sm-2" type="text"
placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success my-2 my-sm-0"
type="submit">Search</button>
</form>
</div>
</nav>
答案 2 :(得分:0)
使用Bootstrap 4集成Flex系统。我稍微清理了一下代码并添加了魔法 ml-auto (margin-left:auto)。 试一试。
.navbar{
background-image: cornflowerblue;
}
#mainNav{
border: 5px solid black;
margin: 3%;
background-color: white;
}
body{
background-color: grey;
}
#navContent{
background-color: white;
margin: 3%;
}
#final{
border: 5px solid black;
margin: 3%;
background-color: white;
}
#searchForm{
margin: auto;
}
<html>
<head>
<title></title>
</head>
<body>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/css/bootstrap.min.css" rel="stylesheet">
<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet">
<div class="container-fluid">
<nav class="navbar navbar-expand-lg rounded" id="mainNav">
<a class="navbar-brand" href="#">Brand</a>
<form class="form-inline" id="searchForm" name="searchForm" role="search">
<div class="input-group">
<input class="form-control" placeholder="Search" type="text">
<div class="input-group-btn">
<button class="btn btn-secondary" type="button"><i class="fa fa-search"></i></button>
</div>
</div>
</form>
<button aria-controls="navToggler" aria-expanded="false" aria-label="Toggle navigation" class="navbar-toggler" data-target="#navToggler" data-toggle="collapse" type="button"><i class="fa fa-bars"></i></button>
<div class="collapse navbar-collapse ml-auto" id="navToggler">
<ul class="navbar-nav">
<li class="nav-item">
<a class="nav-link" href="#">Option 1</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Option 2</a>
</li>
</ul>
</div>
</nav>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js">
</script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.11.0/umd/popper.min.js">
</script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/js/bootstrap.min.js">
</script>
</body>
</html>