更改bootstrap navbar下拉菜单悬停颜色

Question

我尝试在导航栏中更改下拉菜单的悬停颜色.但我不能这样做.任何人都可以帮助我.这是我的html.how我用css改变悬停颜色？

<div class="navbar navbar-inverse" id="menu">
    <div class="navbar-inner">
        <ul class="nav">
            <li><a href="index.html">Home</a></li>
            <li><a href="projects.html">Projects</a></li>
            <li class="dropdown active"><a href="#" class="dropdown-toggle" data-toggle="dropdown">Service <span class="caret"></span></a>
                <ul class="dropdown-menu" role="menu">
                    <li><a href="registration.html">Action</a></li>
                    <li><a href="#">Another action</a></li>
                    <li><a href="#">Something else here</a></li>
                    <li class="divider"></li>
                    <li><a href="#">Separated link</a></li>
                    <li class="divider"></li>
                    <li><a href="#">One more separated link</a></li>
                </ul>
             </li>
             <li class="dropdown"><a href="#" class="dropdown-toggle" data-toggle="dropdown">Gallery <span class="caret"></span></a>
                <ul class="dropdown-menu" role="menu">
                    <li><a href="registration.html">house Plan design</a></li>
                    <li><a href="#">Interior Design</a></li>
                    <li><a href="#">Gardning DEsign</a></li>
                    <li class="divider"></li>
                    <li><a href="#">Separated link</a></li>
                    <li class="divider"></li>
                    <li><a href="#">One more separated link</a></li>
                </ul>
             </li>
            <li><a href="about.html">About</a></li>
            <li><a href="contact.html">Contact</a></li>
        </ul>
    </div>
    </div>

Answer 1

试试这个:

删除background-image并使用background-color

 .dropdown-menu > li > a:hover, .dropdown-menu > li > a:focus {
            background-image:none !important;
 }
 .dropdown-menu > li > a:hover, .dropdown-menu > li > a:focus {
            background-color:red;
 }

DEMO

要更改箭头颜色,请使用:

<span class="caret" style="color: red;"></span>

更新的演示