Question

当你将鼠标悬停在＆＃34;视频＆＃34;时，我希望是什么？子菜单出现。

我已编码.sub { display: block; }这会使子菜单消失，但当您将鼠标悬停在＆＃34;视频＆＃34;它没有出现。

请帮助，谢谢。

<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" type="text/css" href="style.css" />
<link rel="stylesheet" type="text/css" href="videos.css" />
<link rel="stylesheet" type="text/css" href="vines.css" />
<title>Puppy Power</title>
</head>
<body>
        <div id="page">
<header></header>
        <div id="dog logo">
    </div>

<ul id="navigation">
        <li><a href="index.html">Home</a></li>
        <li><a href="videos.html">Videos</a>
            <ul class="sub">
                <li><a href="vines.html">Vines</a></li>
                <li><a href="#">Pugs</a></li>
                <li><a href="#">Failing Dogs</a></li>
                <li><a href="#">Crazy Dogs</a></li>
                <li><a href="#">Funny Dogs</a></li>

            </ul>
        </li>


        <li><a href="#">Photographs</a></li>    
        <li><a href="#">Articles</a></li>
        <li><a href="#">Contact</a></li>
    </ul>

<div id="hero"><h1><b>HERO</b></h1></div>


<div id="topvideo"><h1><b>TOP VIDEO</b></h1></div>

<div id="topphoto"><h1><b>TOP PHOTO</b></h1></div>

<div id="toparticles"><h1><b>TOP ARTICLE</b></h1></div>

<div id="content"><h1><b>CONTENT</b></h1></div>

<div id="footer"><h1><b>FOOTER</b></h1></div>

</body>
</html>

#page {
    max-width: 850px;
    min-width: 840px;
    min-height: 1550px;
    max-height: 1600px;
} 

* {
    margin: 0px;
    padding: 0px;
}



#navigation {
    border: 1px solid #89cFF0;
    width: 813px;
    height: 187px;
    margin-left: 5px;

}

#navigation li {
    border: 1px solid #89cFF0;
    width: 125px;
    text-align: center;
    float: left;
    list-style-type: none;
    top: 159px;
    left: 80px;
}



#navigation , .sub {
    list-style-type: none;



}

.sub {
    display: none;
}

.sub li {
    top: 100px;
}



#navigation li {
    border: 1px solid #89cFF0;
    width: 125px;
    text-align: center;
    float: left;
    list-style-type: none;
}

#navigation   a {
    text-decoration: none;
    display: block;
    width: 125px;
    height: 25px;
    line-height: 25px;
    border: 1px solid #89cFF0;
}

#navigation   li:hover > a {
    background-color: #89cFF0;
}



#hero {
    width: 813px;
    height: 408px;
    border-top: 1px solid #89cff0;
    border-bottom: 1px solid #89cff0;
    border-left: 1px solid #89cff0;
    border-right: 1px solid #89cff0;
    display: inline-block;
    margin: 5px 0px 0px 0px;
    text-align: center;
    color: red;

}

#topvideo {
    width: 267px;
    height: 370px;
    border-top: 1px solid #89cff0;
    border-bottom: 1px solid #89cff0;
    border-left: 1px solid #89cff0;
    border-right: 1px solid #89cff0;
    display: inline-block;
    vertical-align:top;
    text-align: center;
    margin: 5px 0px 5px 0px;



}

#topphoto {
    width: 267px;
    height: 370px;
    border-top: 1px solid #89cff0;
    border-bottom: 1px solid #89cff0;
    border-left: 1px solid #89cff0;
    border-right: 1px solid #89cff0;
    display: inline-block;
    vertical-align:top;
    text-align: center;
    margin: 5px 0px 5px 0px;

}

#toparticles {
    width: 267px;
    height: 370px;
    border-top: 1px solid #89cff0;
    border-bottom: 1px solid #89cff0;
    border-left: 1px solid #89cff0;
    border-right: 1px solid #89cff0;
    display: inline-block;
    vertical-align:top;
    text-align: center;
    margin: 5px 0px 5px 0px;
}

#content {
    width: 813px;
    height: 310px;
    border-top: 1px solid #89cff0;
    border-bottom: 1px solid #89cff0;
    border-left: 1px solid #89cff0;
    border-right: 1px solid #89cff0;
    margin: 0px 0px 0px 0px;
    text-align: center;
}

#footer {

    width: 813px;
    height: 100px;
    border-top: 1px solid #89cff0;
    border-bottom: 1px solid #89cff0;
    border-left: 1px solid #89cff0;
    border-right: 1px solid #89cff0;
    margin: 5px 0px 0px 0px;
    text-align: center;
}

Answer 1

标准父母与父母之间的差异＆gt;孩子就是后者只会选择直接的孩子。

来源tutplus

将此添加到您的css

#navigation li:hover > ul.sub{
    display: block

}

示例jsfiddle

制作菜单和子菜单。需要帮助将子菜单编码到菜单中，下拉菜单

1 个答案: