我尝试创建导航菜单。有些项目应该有一个子菜单，点击/悬停箭头图标即可显示。
但是我在正确定位子菜单时遇到了一些问题
JSFiddle： http://jsfiddle.net/g651mwdu/
<nav>
<div class="nav-button-group"> <span class="nav-button-group-title">Title</span>
<div class="nav-button-container"> <span class='fa fa-plus button-icon'></span>
<span class="button-text">Add</span>
<div class="button-arrow-down"></div>
<div class="submenu">Show some more elements</div>
</div>
<div class="nav-button-container"> <span class='fa fa-cog button-icon'></span>
<span class="button-text">Change</span>
<div class="button-arrow-down"></div>
</div>
<div class="nav-button-container"> <span class='fa fa-link button-icon'></span>
<span class="button-text">Link</span>
</div>
<div class="nav-button-container"> <span class='fa fa-comment-o button-icon'></span>
<span class="button-text">Tooltip</span>
</div>
<div class="nav-button-container"> <span class='fa fa-trash-o button-icon'></span>
<span class="button-text">Remove</span>
</div>
</div>
</nav>
CSS
.nav-button-container {
display: inline-block;
width: 2em;
height: 2.5em;
padding: .25em;
text-align: center;
color: #555;
}
.button-text {
display: block;
font-size: .5em;
margin: .5em 0;
}
.button-icon {
vertical-align: middle;
font-size: 1.3em;
}
.button-arrow-down {
width: 0;
height: 0;
border-left: 5px solid transparent;
border-right: 5px solid transparent;
border-top: 5px solid #B4B4B4;
margin: 0 auto;
}
.line-separator {
display: inline-block;
width: 1em;
}
nav {
background-color: #f2f2f2;
padding: .3em 0;
border-radius: 7px;
}
.nav-button-group {
display: inline-block;
background-color: #fafafa;
padding: .3em;
border-radius: 5px;
}
.nav-button-group-title {
display: block;
font-weight: bold;
font-size: .7em;
color: #555;
padding: 0 .5em;
background-color: #F2F2F2;
border-radius: 4px;
}
答案 0 :(得分：0)
这是你想要实现的目标（使用与下拉文本对齐的字体真棒图标导航）？
您正在使用按钮来构建您的菜单，这是不必要的（或推荐）。使用ul 无序列表和列出项li来构建导航。然后插入图标非常简单。
<li><a href="#"><i class="fa fa-pencil-square-o fa-fw"></i> Drafts</a>
示例代码段
.navbar {
border-radius: 0px;
}
.dropdown-submenu {
position: relative;
}
.dropdown-submenu > .dropdown-menu {
top: 0;
left: 100%;
margin-top: -6px;
margin-left: -1px;
-webkit-border-radius: 0px;
-moz-border-radius: 0px 6px 6px 6px;
border-radius: 0px;
}
.dropdown-submenu:hover > .dropdown-menu {
display: block;
}
.dropdown-submenu > a:after {
display: block;
content: " ";
float: right;
width: 0px;
height: 0px;
border-color: transparent;
border-style: solid;
border-width: 5px 0px 5px 5px;
border-left-color: #cccccc;
margin-top: 5px;
margin-right: -10px;
}
.dropdown-submenu:hover > a:after {
border-left-color: #ffffff;
}
.dropdown-submenu.pull-left {
float: none;
}
.dropdown-submenu.pull-left > .dropdown-menu {
left: -100%;
margin-left: 10px;
-webkit-border-radius: 6px 0px 6px 6px;
-moz-border-radius: 6px 0px 6px 6px;
border-radius: 6px 0px 6px 6px;
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.3.0/css/font-awesome.css" rel="stylesheet" />
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet" />
<nav role="navigation" class="navbar navbar-inverse">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" data-target="#navbarCollapse" data-toggle="collapse" class="navbar-toggle"> <span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button> <a href="#" class="navbar-brand">Brand</a>
</div>
<!-- Collection of nav links, forms, and other content for toggling -->
<div id="navbarCollapse" class="collapse navbar-collapse">
<ul class="nav navbar-nav">
<li class="active"><a href="#">Home</a>
</li>
<li><a href="#">Profile</a>
</li>
<li class="dropdown"> <a data-toggle="dropdown" class="dropdown-toggle" href="#">Messages <b class="caret"></b></a>
<ul role="menu" class="dropdown-menu">
<li><a href="#"><i class="fa fa-envelope-o fa-fw"></i> Inbox</a>
</li>
<li><a href="#"><i class="fa fa-pencil-square-o fa-fw"></i> Drafts</a>
</li>
<li><a href="#"><i class="fa fa-paper-plane-o fa-fw"></i> Sent Items</a>
</li>
<li class="divider"></li>
<li><a href="#"><i class="fa fa-trash-o fa-fw"></i> Trash</a>
</li>
</ul>
</li>
<li><a href="#">Hello</a>
</li>
<li class="dropdown"> <a data-toggle="dropdown" class="dropdown-toggle" href="#">Things <b class="caret"></b></a>
<ul role="menu" class="dropdown-menu">
<li><a href="#"><i class="fa fa-envelope-o fa-fw"></i> Inbox</a>
</li>
<li><a href="#"><i class="fa fa-pencil-square-o fa-fw"></i> Drafts</a>
</li>
<li><a href="#"><i class="fa fa-paper-plane-o fa-fw"></i> Sent Items</a>
</li>
<li class="divider"></li>
<li><a href="#"><i class="fa fa-trash-o fa-fw"></i> Trash</a>
<li class="dropdown-submenu"> <a tabindex="-1" href="#"><i class="fa fa-hand-o-right fa-fw"></i> Profile</a>
<ul class="dropdown-menu">
<li><a tabindex="-1" href="#"><i class="fa fa-calendar-o fa-fw"></i> Account</a>
</li>
<li><a tabindex="-1" href="#"><i class="fa fa-folder-open-o fa-fw"></i> Users</a>
</li>
<li><a tabindex="-1" href="#"><i class="fa fa-file-o fa-fw"></i> Login</a>
</li>
</ul>
</li>
</li>
</ul>
</li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li><a href="#">Login</a>
</li>
</ul>
</div>
</nav>