我在bootstrap 3中创建了一个导航栏。导航栏是蓝色的,当打开一个菜单(鼠标悬停)时,我想显示绿色背景颜色的子菜单。Bootstrap 3 - 扩展时的导航颜色
这里是我的小提琴
https://jsfiddle.net/8jj2g4ym/2/
li.dropdown:hover > .dropdown-menu {
display: block;
}
.navbar-default {
background-color: blue;
border-color: #e7e7e7;
}
@media (min-width: 768px) {
.navbar-nav>li>a {
padding-top: 15px;
padding-bottom: 4px;
}}
.navbar-default .navbar-nav>li>a {
color:white;
FONT-SIZE: 12pt;
TEXT-DECORATION: none;
FONT-FAMILY: Arial;
WHITE-SPACE: nowrap;
DISPLAY: block;
}
.navbar-default .navbar-nav > li > a:hover,
.navbar-default .navbar-nav > li > a:focus {
color: #333;
background-color: transparent;
}
.navbar-nav .open .dropdown-menu > li > a:hover,
.navbar-nav .open .dropdown-menu > li > a:focus {
background-color: green;
}
.navbar-nav > li > a{
padding-left:2px;
padding-right:2px;
margin-left:2px;
margin-right:2px;
}
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>
<nav class="navbar navbar-default">
<div class="container-fluid" style="padding-left:2px;">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#navbar-collapse-1">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse" id="navbar-collapse-1">
<ul class="nav navbar-nav">
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Menu0 <b class="caret"></b></a>
<ul class="dropdown-menu">
<li><a href="#" style="cursor:pointer">Menu1</a></li>
<li><a href="#">Menu2</a></li>
<li><a href="#">Menu3</a></li>
</ul>
</li>
</ul>
<ul class="nav navbar-nav" >
<li ><a></a></li>
</ul>
<ul class="nav navbar-nav">
<li><a href="#">Menu4</a></li>
</ul>
</div>
</div>
</nav>
虽然如预期以蓝色显示的导航栏,打开过的项目有白色背景颜色(我想是绿色的)。
我为此添加了一种风格,但它似乎没有影响。
.navbar-nav .open .dropdown-menu > li > a:hover,
.navbar-nav .open .dropdown-menu > li > a:focus {
background-color: green;
}
谢谢!只是一个后续问题。如何确保字体颜色是白色的?我在同一个CSS中尝试过颜色:白色,但字体仍然是黑色。 – kayasa
只需添加以下规则:.navbar-nav .dropdown-menu> li> a {color:#fff!important; } – Nineoclick