小贝子编程

如何让这个 .slideToggle 方法工作?



当我使用.slideToggle/.slideDown/.slideUp时，没有发生任何操作，我不知道如何做到这一点，所以当 #web 滚动时导航菜单会下降。我所指的导航菜单是 #webdsn 下降。

.HTML：

<DOCTYPE! HTML>
<html>
<head>
<title>Home</title>
<link rel="stylesheet" type="text/css" href="main.css">
<script src='script.js' type='text/javascript'></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
</head>
<body>
<div id="navbar">
<div id="nav-container">
<h1>PORTFOLIO</h1>
<a href="#">Logo Design</a>
<a href="#">Business Cards</a>
<a href="posters+flyers.html">Posters & Flyers</a>
<a id="web" href="#">Website Design</a>
</div>
</div>
<div id='webdsn-drop'>
<div id="webdsn-content">
<h2 id="webname">WEBSITE DESIGN<h2>
</div>
</div>  

<div id="banner-container">
<h1>LOREM IPSUM<br>SAMPLE<h1> 
<h2>Lorem Ipsum Sample Lorem Ipsum Sample</h2>
</div>
<div id="thmbnl-container">  
<div class="ctgrs-container">
<a href="#">
<img src="https://image.freepik.com/free-vector/workspace-banners_23-2147509206.jpg">
<h1>Web Design</h1>
</a> 
</div>

<div class="ctgrs-container">
<a href="posters+flyers.html">
<img src="https://image.freepik.com/free-psd/blue-company-poster_23-2147493194.jpg">
<h1>Posters & Flyers</h1>
</a>  
</div> 

<div class="ctgrs-container">
<a href="#">
<img src="https://image.freepik.com/free-vector/blue-wave-business-card-design_1017-4370.jpg">
<h1>Business Cards</h1>
</a> 
</div>
<div class="ctgrs-container">
<a href="#">
<img src="https://image.freepik.com/free-vector/abstract-logo-template_23-2147490980.jpg">
<h1>Logo Design</h1>
</a> 
</div>
</div> 
<h2 id="recent-title">Recent Projects</h2>
<div id="recent">
<div id="recent-container">
<div class="thmbnl-recent">
<img src="http://placehold.it/190x190">
<h1>Sample</h1>
</div>  
<div class="thmbnl-recent">
<img src="http://placehold.it/190x190">
<h1>Sample</h1>
</div>
<div class="thmbnl-recent">
<img src="http://placehold.it/190x190">
<h1>Sample</h1>
</div>
<div class="thmbnl-recent">
<img src="http://placehold.it/190x190">
<h1>Sample</h1>
</div>  
<div class="thmbnl-recent">
<img src="http://placehold.it/190x190">
<h1>Sample</h1>
</div>
<div class="thmbnl-recent">
<img src="http://placehold.it/190x190">
<h1>Sample</h1>
</div>
<div class="thmbnl-recent">
<img src="http://placehold.it/190x190">
<h1>Sample</h1>
</div>
</div>
</div>
</body>

.CSS：

body {
margin: 0 auto;
width: 950px;
/* border: solid;
border-color: black; */
background-color: #f2f2f2;
}
/*--------------Navigation Bar------------*/
#navbar {
width: 100%;
background-color: white;
overflow: auto;
position: fixed;
left: 0px;
top: 0px;
border-bottom: solid;
border-width: 1px;
border-color: #d8d8d8;
overflow: hidden;
z-index: 10;
}
#nav-container {
max-width: 950px;
min-width: 750px;
margin: 0 auto;

}
#nav-container h1 {
float: left;
margin: 0 auto;
padding-top: 10px;
font-family: "calibri light";
font-size: 25px;
letter-spacing: 0.3em;
margin-left: 5px;
transition: color 0.3s ease;
}
#nav-container a {
float: right;
display: block;
padding: 15px 15px;
text-decoration: none;
color: black;
font-family: "calibri light", sans-serif;
font-size: 18px;
transition: background-color 0.5s ease;
}
#nav-container a:hover {
background-color: #f4f4f4;
transition: background-color 0.5s ease;
}
#nav-container a:active {
background-color: #bfbfbf;
}
#nav-container h1:hover {
color: #aaaaaa;
transition: color 0.3s ease;
}
#webdsn-drop{
padding: 75px 0 0 0;
background-color: rgba(252, 252, 252, 0.95);
border-bottom: solid 1px #d8d8d8;
height: 200px;
position: fixed;
width: 100%;
left: 0px;
top: 0px;
box-shadow: 0 10px 10px -5px rgba(0, 0, 0, 0.3);
z-index: 9;
display: none;
}
#webdsn-content{
width: 950px;
margin: 0 auto;
}
#webname{
color: black;
border: solid;
border-width: 1px;
border-radius: 7.5px;
padding: 5px 15px;
display: inline;
font-family: 'calibri light';
letter-spacing: 2.5px;  
}
/*--------------Banner------------*/
#banner-container {
margin-top: 75px ;
margin-bottom: 25px;
text-align: center;
background-color: white;
padding: 75px 0px;
border: solid;
border-color: #d8d8d8;
border-width: 1.5px;
}
#banner-container h1 {
font-family: "calibri light";
font-size: 35px;
letter-spacing: 0.2em;
}
#banner-container h2 {
width: 950px;
font-family: "calibri light";
font-size: 18px;
letter-spacing: 0.2em;
}
/*-----------Category Thumbnails---------*/
#thmbnl-container {
width: 950px;   
display: flex;
justify-content: space-between;
}
.ctgrs-container {
background-color: white;
display: inline-block;
padding: 13px 13px 0px 13px;
border: solid;
border-width: 1.5px;
border-color: #d8d8d8;
box-shadow: none;
transition: box-shadow 0.25s ease;  
margin-bottom: 25px;
}
.ctgrs-container img {
height: 190px;
width: 190px;
}

.ctgrs-container h1 {
text-align: center;
font-family: "calibri light";
font-size: 24px;
line-height: 25px;
}
.ctgrs-container a {
text-decoration: none;
color: black;
}

.ctgrs-container:hover {
box-shadow: 0px 0px 30px 0px #727272;
transition: box-shadow 0.25s ease;
}
/*----------Recent Projects----------*/
#recent-container {
width: 950px;
height: 275px;
background-color: ;
border: solid;
border-width: 1.5px;
border-color: #d8d8d8;
margin-bottom: 25px;
position: absolute;
overflow-x: scroll;
overflow-y: hidden;
white-space: nowrap;
}
.thmbnl-recent {
padding: 20px 13px 0px 13px;
width: 190px;
display: inline-block;
border: solid;
border-width: 1.5px;
border-color: #d8d8d8;
background-color: white;
transition: background-color 0.3s ease;
cursor: pointer;
}
.thmbnl-recent h1 {
text-align: center;
font-family: "calibri light";
font-size: 24px;
margin: 0 auto;
padding: 10px 0px;
letter-spacing: 2px;
}
#recent-title {
font-family: "calibri light";
text-align: center;
width: 950px;
background-color: white;
margin: 0 auto;
padding: 10px 0px;
position: relative;
z-index: 2;
border-top: solid;
border-right: solid;
border-left: solid;
box-shadow: 0 10px 10px -5px rgba(0, 0, 0, 0.3);
border-width: 1.5px;
border-color: #d8d8d8;
}
.thmbnl-recent:hover {
background-color: #e8e8e8;
transition: background-color 0.3s ease;
}
.thmbnl-recent:active {
background-color: #d1d1d1;
}

/*--------SLIDE IMAGE---------*/
#gallery-container {
margin: 75px 0px 45px 0px;
text-align: center;
border: solid;
border-color: #d8d8d8;
border-width: 1.5px;
}
#slide-section {
text-align: center;
background-color: white;
padding: 20px 20px 0px 20px;
}
#gallery-container h1{
padding: 15px 0 15px 0;
margin: 0;
font-family: "calibri light";
font-size: 30px;
border-bottom: solid;
background-color: white;
border-color: #d8d8d8;
border-width: 1.5px;
box-shadow: 0 7px 15px -2px rgba(0, 0, 0, 0.3);
z-index: 3;
position: relative;
}
#imgrow {
margin-top: 20px;
padding-bottom: 20px;
display: flex;
justify-content: space-between;
}

j查询：

$(document).ready(function(){
$('#web').hover(function(){
$('#webdsn-drop').slideToggle();
});
});

这可能是我认为您通过正确移动下拉列表所寻找的。

离开JB Lovo的答案。

$(document).ready(function(){
$('#web').hover(function(){
$('#webdsn-drop').slideDown(500);
},
function(){
$('#webdsn-drop').hover(function(){}, function(){$(this).slideUp(500);});
});
});
body {
margin: 0 auto;
width: 950px;
/* border: solid;
border-color: black; */
background-color: #f2f2f2;
}
/*--------------Navigation Bar------------*/
#navbar {
width: 100%;
background-color: white;
overflow: auto;
position: fixed;
left: 0px;
top: 0px;
border-bottom: solid;
border-width: 1px;
border-color: #d8d8d8;
overflow: hidden;
z-index: 10;
}
#nav-container {
max-width: 950px;
min-width: 750px;
margin: 0 auto;
}
#nav-container h1 {
float: left;
margin: 0 auto;
padding-top: 10px;
font-family: "calibri light";
font-size: 25px;
letter-spacing: 0.3em;
margin-left: 5px;
transition: color 0.3s ease;
}
#nav-container a {
float: right;
display: block;
padding: 15px 15px;
text-decoration: none;
color: black;
font-family: "calibri light", sans-serif;
font-size: 18px;
transition: background-color 0.5s ease;
}
#nav-container a:hover {
background-color: #f4f4f4;
transition: background-color 0.5s ease;
}
#nav-container a:active {
background-color: #bfbfbf;
}
#nav-container h1:hover {
color: #aaaaaa;
transition: color 0.3s ease;
}
#webdsn-drop{
padding: 75px 0 0 0;
background-color: rgba(252, 252, 252, 0.95);
border-bottom: solid 1px #d8d8d8;
height: 200px;
position: fixed;
width: 100%;
left: 0px;
top: 0px;
box-shadow: 0 10px 10px -5px rgba(0, 0, 0, 0.3);
z-index: 9;
display: none;
}
#webdsn-content{
width: 950px;
margin: 0 auto;
}
#webname{
color: black;
border: solid;
border-width: 1px;
border-radius: 7.5px;
padding: 5px 15px;
display: inline;
font-family: 'calibri light';
letter-spacing: 2.5px;  
}
/*--------------Banner------------*/
#banner-container {
margin-top: 75px ;
margin-bottom: 25px;
text-align: center;
background-color: white;
padding: 75px 0px;
border: solid;
border-color: #d8d8d8;
border-width: 1.5px;
}
#banner-container h1 {
font-family: "calibri light";
font-size: 35px;
letter-spacing: 0.2em;
}
#banner-container h2 {
width: 950px;
font-family: "calibri light";
font-size: 18px;
letter-spacing: 0.2em;
}
/*-----------Category Thumbnails---------*/
#thmbnl-container {
width: 950px;   
display: flex;
justify-content: space-between;
}
.ctgrs-container {
background-color: white;
display: inline-block;
padding: 13px 13px 0px 13px;
border: solid;
border-width: 1.5px;
border-color: #d8d8d8;
box-shadow: none;
transition: box-shadow 0.25s ease;  
margin-bottom: 25px;
}
.ctgrs-container img {
height: 190px;
width: 190px;
}
.ctgrs-container h1 {
text-align: center;
font-family: "calibri light";
font-size: 24px;
line-height: 25px;
}
.ctgrs-container a {
text-decoration: none;
color: black;
}
.ctgrs-container:hover {
box-shadow: 0px 0px 30px 0px #727272;
transition: box-shadow 0.25s ease;
}
/*----------Recent Projects----------*/
#recent-container {
width: 950px;
height: 275px;
background-color: ;
border: solid;
border-width: 1.5px;
border-color: #d8d8d8;
margin-bottom: 25px;
position: absolute;
overflow-x: scroll;
overflow-y: hidden;
white-space: nowrap;
}
.thmbnl-recent {
padding: 20px 13px 0px 13px;
width: 190px;
display: inline-block;
border: solid;
border-width: 1.5px;
border-color: #d8d8d8;
background-color: white;
transition: background-color 0.3s ease;
cursor: pointer;
}
.thmbnl-recent h1 {
text-align: center;
font-family: "calibri light";
font-size: 24px;
margin: 0 auto;
padding: 10px 0px;
letter-spacing: 2px;
}
#recent-title {
font-family: "calibri light";
text-align: center;
width: 950px;
background-color: white;
margin: 0 auto;
padding: 10px 0px;
position: relative;
z-index: 2;
border-top: solid;
border-right: solid;
border-left: solid;
box-shadow: 0 10px 10px -5px rgba(0, 0, 0, 0.3);
border-width: 1.5px;
border-color: #d8d8d8;
}
.thmbnl-recent:hover {
background-color: #e8e8e8;
transition: background-color 0.3s ease;
}
.thmbnl-recent:active {
background-color: #d1d1d1;
}
/*--------SLIDE IMAGE---------*/
#gallery-container {
margin: 75px 0px 45px 0px;
text-align: center;
border: solid;
border-color: #d8d8d8;
border-width: 1.5px;
}
#slide-section {
text-align: center;
background-color: white;
padding: 20px 20px 0px 20px;
}
#gallery-container h1{
padding: 15px 0 15px 0;
margin: 0;
font-family: "calibri light";
font-size: 30px;
border-bottom: solid;
background-color: white;
border-color: #d8d8d8;
border-width: 1.5px;
box-shadow: 0 7px 15px -2px rgba(0, 0, 0, 0.3);
z-index: 3;
position: relative;
}
#imgrow {
margin-top: 20px;
padding-bottom: 20px;
display: flex;
justify-content: space-between;
}
<DOCTYPE! HTML>
<html>
<head>
<title>Home</title>
<link rel="stylesheet" type="text/css" href="main.css">
<script src='script.js' type='text/javascript'></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
</head>
<body>
<div id="navbar">
<div id="nav-container">
<h1>PORTFOLIO</h1>
<a href="#">Logo Design</a>
<a href="#">Business Cards</a>
<a href="posters+flyers.html">Posters & Flyers</a>
<a id="web" href="#">Website Design</a>
</div>
</div>
<div id='webdsn-drop'>
<div id="webdsn-content">
<h2 id="webname">WEBSITE DESIGN</h2>
</div>
</div>  
<div id="banner-container">
<h1>LOREM IPSUM<br>SAMPLE<h1> 
<h2>Lorem Ipsum Sample Lorem Ipsum Sample</h2>
</div>
<div id="thmbnl-container">  
<div class="ctgrs-container">
<a href="#">
<img src="https://image.freepik.com/free-vector/workspace-banners_23-2147509206.jpg">
<h1>Web Design</h1>
</a> 
</div>
<div class="ctgrs-container">
<a href="posters+flyers.html">
<img src="https://image.freepik.com/free-psd/blue-company-poster_23-2147493194.jpg">
<h1>Posters & Flyers</h1>
</a>  
</div> 
<div class="ctgrs-container">
<a href="#">
<img src="https://image.freepik.com/free-vector/blue-wave-business-card-design_1017-4370.jpg">
<h1>Business Cards</h1>
</a> 
</div>
<div class="ctgrs-container">
<a href="#">
<img src="https://image.freepik.com/free-vector/abstract-logo-template_23-2147490980.jpg">
<h1>Logo Design</h1>
</a> 
</div>
</div> 
<h2 id="recent-title">Recent Projects</h2>
<div id="recent">
<div id="recent-container">
<div class="thmbnl-recent">
<img src="http://placehold.it/190x190">
<h1>Sample</h1>
</div>  
<div class="thmbnl-recent">
<img src="http://placehold.it/190x190">
<h1>Sample</h1>
</div>
<div class="thmbnl-recent">
<img src="http://placehold.it/190x190">
<h1>Sample</h1>
</div>
<div class="thmbnl-recent">
<img src="http://placehold.it/190x190">
<h1>Sample</h1>
</div>  
<div class="thmbnl-recent">
<img src="http://placehold.it/190x190">
<h1>Sample</h1>
</div>
<div class="thmbnl-recent">
<img src="http://placehold.it/190x190">
<h1>Sample</h1>
</div>
<div class="thmbnl-recent">
<img src="http://placehold.it/190x190">
<h1>Sample</h1>
</div>
</div>
</div>
</body>

你错过了关闭你的<h2 id="webname">WEBSITE DESIGN</h2>

如果您将鼠标悬停在网站设计上，则会显示下拉菜单。这就是你要找的吗？

$(document).ready(function(){
$('#web').hover(function(){
$('#webdsn-drop').slideToggle();
});
});
body {
margin: 0 auto;
width: 950px;
/* border: solid;
border-color: black; */
background-color: #f2f2f2;
}
/*--------------Navigation Bar------------*/
#navbar {
width: 100%;
background-color: white;
overflow: auto;
position: fixed;
left: 0px;
top: 0px;
border-bottom: solid;
border-width: 1px;
border-color: #d8d8d8;
overflow: hidden;
z-index: 10;
}
#nav-container {
max-width: 950px;
min-width: 750px;
margin: 0 auto;
}
#nav-container h1 {
float: left;
margin: 0 auto;
padding-top: 10px;
font-family: "calibri light";
font-size: 25px;
letter-spacing: 0.3em;
margin-left: 5px;
transition: color 0.3s ease;
}
#nav-container a {
float: right;
display: block;
padding: 15px 15px;
text-decoration: none;
color: black;
font-family: "calibri light", sans-serif;
font-size: 18px;
transition: background-color 0.5s ease;
}
#nav-container a:hover {
background-color: #f4f4f4;
transition: background-color 0.5s ease;
}
#nav-container a:active {
background-color: #bfbfbf;
}
#nav-container h1:hover {
color: #aaaaaa;
transition: color 0.3s ease;
}
#webdsn-drop{
padding: 75px 0 0 0;
background-color: rgba(252, 252, 252, 0.95);
border-bottom: solid 1px #d8d8d8;
height: 200px;
position: fixed;
width: 100%;
left: 0px;
top: 0px;
box-shadow: 0 10px 10px -5px rgba(0, 0, 0, 0.3);
z-index: 9;
display: none;
}
#webdsn-content{
width: 950px;
margin: 0 auto;
}
#webname{
color: black;
border: solid;
border-width: 1px;
border-radius: 7.5px;
padding: 5px 15px;
display: inline;
font-family: 'calibri light';
letter-spacing: 2.5px;  
}
/*--------------Banner------------*/
#banner-container {
margin-top: 75px ;
margin-bottom: 25px;
text-align: center;
background-color: white;
padding: 75px 0px;
border: solid;
border-color: #d8d8d8;
border-width: 1.5px;
}
#banner-container h1 {
font-family: "calibri light";
font-size: 35px;
letter-spacing: 0.2em;
}
#banner-container h2 {
width: 950px;
font-family: "calibri light";
font-size: 18px;
letter-spacing: 0.2em;
}
/*-----------Category Thumbnails---------*/
#thmbnl-container {
width: 950px;   
display: flex;
justify-content: space-between;
}
.ctgrs-container {
background-color: white;
display: inline-block;
padding: 13px 13px 0px 13px;
border: solid;
border-width: 1.5px;
border-color: #d8d8d8;
box-shadow: none;
transition: box-shadow 0.25s ease;  
margin-bottom: 25px;
}
.ctgrs-container img {
height: 190px;
width: 190px;
}
.ctgrs-container h1 {
text-align: center;
font-family: "calibri light";
font-size: 24px;
line-height: 25px;
}
.ctgrs-container a {
text-decoration: none;
color: black;
}
.ctgrs-container:hover {
box-shadow: 0px 0px 30px 0px #727272;
transition: box-shadow 0.25s ease;
}
/*----------Recent Projects----------*/
#recent-container {
width: 950px;
height: 275px;
background-color: ;
border: solid;
border-width: 1.5px;
border-color: #d8d8d8;
margin-bottom: 25px;
position: absolute;
overflow-x: scroll;
overflow-y: hidden;
white-space: nowrap;
}
.thmbnl-recent {
padding: 20px 13px 0px 13px;
width: 190px;
display: inline-block;
border: solid;
border-width: 1.5px;
border-color: #d8d8d8;
background-color: white;
transition: background-color 0.3s ease;
cursor: pointer;
}
.thmbnl-recent h1 {
text-align: center;
font-family: "calibri light";
font-size: 24px;
margin: 0 auto;
padding: 10px 0px;
letter-spacing: 2px;
}
#recent-title {
font-family: "calibri light";
text-align: center;
width: 950px;
background-color: white;
margin: 0 auto;
padding: 10px 0px;
position: relative;
z-index: 2;
border-top: solid;
border-right: solid;
border-left: solid;
box-shadow: 0 10px 10px -5px rgba(0, 0, 0, 0.3);
border-width: 1.5px;
border-color: #d8d8d8;
}
.thmbnl-recent:hover {
background-color: #e8e8e8;
transition: background-color 0.3s ease;
}
.thmbnl-recent:active {
background-color: #d1d1d1;
}
/*--------SLIDE IMAGE---------*/
#gallery-container {
margin: 75px 0px 45px 0px;
text-align: center;
border: solid;
border-color: #d8d8d8;
border-width: 1.5px;
}
#slide-section {
text-align: center;
background-color: white;
padding: 20px 20px 0px 20px;
}
#gallery-container h1{
padding: 15px 0 15px 0;
margin: 0;
font-family: "calibri light";
font-size: 30px;
border-bottom: solid;
background-color: white;
border-color: #d8d8d8;
border-width: 1.5px;
box-shadow: 0 7px 15px -2px rgba(0, 0, 0, 0.3);
z-index: 3;
position: relative;
}
#imgrow {
margin-top: 20px;
padding-bottom: 20px;
display: flex;
justify-content: space-between;
}
<DOCTYPE! HTML>
<html>
<head>
<title>Home</title>
<link rel="stylesheet" type="text/css" href="main.css">
<script src='script.js' type='text/javascript'></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
</head>
<body>
<div id="navbar">
<div id="nav-container">
<h1>PORTFOLIO</h1>
<a href="#">Logo Design</a>
<a href="#">Business Cards</a>
<a href="posters+flyers.html">Posters & Flyers</a>
<a id="web" href="#">Website Design</a>
</div>
</div>
<div id='webdsn-drop'>
<div id="webdsn-content">
<h2 id="webname">WEBSITE DESIGN</h2>
</div>
</div>  
<div id="banner-container">
<h1>LOREM IPSUM<br>SAMPLE<h1> 
<h2>Lorem Ipsum Sample Lorem Ipsum Sample</h2>
</div>
<div id="thmbnl-container">  
<div class="ctgrs-container">
<a href="#">
<img src="https://image.freepik.com/free-vector/workspace-banners_23-2147509206.jpg">
<h1>Web Design</h1>
</a> 
</div>
<div class="ctgrs-container">
<a href="posters+flyers.html">
<img src="https://image.freepik.com/free-psd/blue-company-poster_23-2147493194.jpg">
<h1>Posters & Flyers</h1>
</a>  
</div> 
<div class="ctgrs-container">
<a href="#">
<img src="https://image.freepik.com/free-vector/blue-wave-business-card-design_1017-4370.jpg">
<h1>Business Cards</h1>
</a> 
</div>
<div class="ctgrs-container">
<a href="#">
<img src="https://image.freepik.com/free-vector/abstract-logo-template_23-2147490980.jpg">
<h1>Logo Design</h1>
</a> 
</div>
</div> 
<h2 id="recent-title">Recent Projects</h2>
<div id="recent">
<div id="recent-container">
<div class="thmbnl-recent">
<img src="http://placehold.it/190x190">
<h1>Sample</h1>
</div>  
<div class="thmbnl-recent">
<img src="http://placehold.it/190x190">
<h1>Sample</h1>
</div>
<div class="thmbnl-recent">
<img src="http://placehold.it/190x190">
<h1>Sample</h1>
</div>
<div class="thmbnl-recent">
<img src="http://placehold.it/190x190">
<h1>Sample</h1>
</div>  
<div class="thmbnl-recent">
<img src="http://placehold.it/190x190">
<h1>Sample</h1>
</div>
<div class="thmbnl-recent">
<img src="http://placehold.it/190x190">
<h1>Sample</h1>
</div>
<div class="thmbnl-recent">
<img src="http://placehold.it/190x190">
<h1>Sample</h1>
</div>
</div>
</div>
</body>

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