我正在学习使用Bootstrap,我制作了一个菜单,但是菜单项在右侧,垂直而不是左侧,水平添加。帮我识别我的错误。
Html文件:
<html>
<head>
<title>Register</title>
<link rel ="stylesheet" href="css/bootstrap.min.css"/>
<link rel ="stylesheet" href="css/main.css"/>
<meta name="viewport" content="width=device-width, initial-scale=1 user-scalable=no">
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<script type="text/javascript" src="js/bootstrap.min.js"></script>
</head>
<body>
<nav class="navbar navbar-default " id="navbar">
<div class="container-fluid">
<div class = "navbar-header">
<a href="#" class="navbar-brand" id="text">Brand</a>
</div>
<ul class = "nav navbar-nav" >
<li><a href="" id="text"> Home <span class="caret"></span></a></li>
<li><a href="" id="text">Team</a></li>
<!-- <a href="" id="text">Gallery</a>
<a href="" id="text">Partners</a>
<a href="" id="text">News</a>
<a href="" id="text">Contact us</a>
<a href="" id="text">Register</a> -->
</ul>
</div>
</nav>
<div></div>
</body>
</html>
的main.css:
#navbar{
/*back ground color*/
background-color: #4311dd
}
/*change color to white*/
#text{
color:#FFFFFF;
}
我看到的网页,
帮我找出错误的地方。
答案 0 :(得分:1)
这是因为您遗漏了重要的组件,即设计为Bootstrap导航栏一部分的东西。重新包含这些组件,一切都会按预期显示。
Bootstrap 4首先设计为移动设备。
因此,如果您遗漏了navbar-toggler
组件,那么您就可以看到所看到的内容,因为在移动设备上,导航是垂直堆叠的。
将此示例代码用作模板:
<nav 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="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Dropdown
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<div class="dropdown-divider"></div>
<a class="dropdown-item" href="#">Something else here</a>
</div>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#">Disabled</a>
</li>
</ul>
<form class="form-inline my-2 my-lg-0">
<input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
</form>
</div>
</nav>
P.S。最新版本的Bootstrap 4是 beta 3 。与beta 2相比,Beta 3确实引入了一些重大变化(尽管它们都没有影响导航栏组件)
答案 1 :(得分:-1)
您应该在navbar-expand-lg
和<nav>
mr-auto
添加ul
课程,如下所示:
<nav class="navbar navbar-default navbar-expand-lg " id="navbar">
<div class="container-fluid">
<div class="navbar-header">
<a href="#" class="navbar-brand" id="text">Brand</a>
</div>
<ul class="nav navbar-nav mr-auto" >
<li><a href="" id="text"> Home <span class="caret"></span></a></li>
<li><a href="" id="text">Team</a></li>
<!-- <a href="" id="text">Gallery</a>
<a href="" id="text">Partners</a>
<a href="" id="text">News</a>
<a href="" id="text">Contact us</a>
<a href="" id="text">Register</a> -->
</ul>
</div>
</nav>