bootstrap导航栏.nav与.navbar区别
刚刚看了bootstrap的导航栏,发现有点弄混了,现在来整理一下;
一、简单的ul,li组成的导航:
<ul class="nav nav-pills justify-content-center bg-dark nav-dark">
<li class="nav-item">
<a href="#" class="nav-link">1</a>
</li>
<li class="nav-item">
<a href="#" class="nav-link">2</a>
</li>
<li class="nav-item">
<a href="#" class="nav-link">3</a>
</li>
</ul>
//解析:.nav .nav-item .nav-link表示ul li是导航——.nav-pills表示胶囊状导航——.bg-dark/.nav-dark表示黑底白字——.justify-content-center表示导航栏在浏览器上居中显示
在浏览器上显示为:
缩小浏览器窗口显示为:
二、导航栏——<nav>标签中class="navbar navbar-expand-sm"——<ul>中class="navbar-nav"——<li>中class="nav-item"
代码为:
<nav class="navbar navbar-expand-sm bg-dark navbar-dark">
<ul class="navbar-nav">
<li class="nav-item active">
<a href="#" class="nav-link">link1</a>
</li>
<li class="nav-item">
<a href="#" class="nav-link">link1</a>
</li>
<li class="nav-item">
<a href="#" class="nav-link">link1</a>
</li>
<li class="nav-item">
<a href="#" class="nav-link">link1</a>
</li>
</ul>
</nav>
正常窗口显示为:
缩小窗口小于576px时:
三、折叠导航栏
当窗口小于576px的时候,不仅仅是简单的编程垂直导航;显示为一个button按钮,导航链接隐藏,点击button显示;
代码为:
<nav class="navbar navbar-expand-sm bg-dark navbar-dark fixed-top">
<a href="#" class="navbar-brand">
<img src="" alt="logo" style="width:70px;height:30px;">
</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#collapsible">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="collapsible">
<ul class="navbar-nav">
<li class="nav-item active">
<a href="#" class="nav-link">link1</a>
</li>
<li class="nav-item">
<a href="#" class="nav-link">link1</a>
</li>
<li class="nav-item">
<a href="#" class="nav-link">link1</a>
</li>
<li class="nav-item">
<a href="#" class="nav-link">link1</a>
</li>
</ul> </nav>
//注意:.navbar-brand是品牌logo;
窗口大于576的时候,显示为:
窗口小于576的时候,显示为:
四、导航栏加上form表单表示搜索框:【?????】
代码如下:
<nav class="navbar navbar-expand-sm bg-dark navbar-dark fixed-top">
<a href="#" class="navbar-brand">
<img src="" alt="logo" style="width:70px;height:30px;">
</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#collapsible">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="collapsible">
<ul class="navbar-nav">
<li class="nav-item active">
<a href="#" class="nav-link">link1</a>
</li>
<li class="nav-item">
<a href="#" class="nav-link">link1</a>
</li>
<li class="nav-item">
<a href="#" class="nav-link">link1</a>
</li>
<li class="nav-item">
<a href="#" class="nav-link">link1</a>
</li>
</ul>
<form class="form-inline">
<div class="input-group">
<span class="input-group-addon">@</span>
<input list="dl" type="text" class="form-control" placeholder="Search"/>
<datalist id="dl">
<option value="IE"></option>
<option value="Firefox"></option>
<option value="chrome"></option>
<option value="safari"></option>
</datalist>
</div> <button class="btn btn-success" type="submit">search</button>
</form>
</nav>
如图所示,如何使得导航栏中的form表单右对齐,移到最右边?????float:eight应该也行吧。。
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" alt="" />
emmmm.....知道了上面的解决方法了:利用网格系统,将左边的ul,li和右边的form表单分别排列;.col-sm-6;然后再给form表单右浮动;
代码如下:
<div class="container-fluid">
<div class="row">
<!-- 导航栏 -->
<nav class="navbar fixed-top navbar-expand-sm bg-dark navbar-dark">
<div class="col-lg-4">
<ul class="navbar-nav">
<li class="nav-item">
<a class="nav-link" href="#">link1</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">link2</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">link3</a>
</li>
</ul>
</div>
<!-- 导航栏表单与按钮 -->
<div class="col-lg-8">
<form class="form-inline" style="float:right;">
<div class="input-group">
<span class="input-group-addon">@</span>
<input list="dl" type="text" class="form-control" placeholder="Search"/>
<datalist id="dl">
<option value="IE"></option>
<option value="Firefox"></option>
<option value="chrome"></option>
<option value="safari"></option>
</datalist>
<button class="btn btn-success" type="submit">search</button>
</div>
</form>
</div>
</nav>
</div>
</div>
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