我有一个菜单，当您单击汉堡包图标时，我想将其下拉。单击按钮后列表项显示，但未单击按钮时仍然可见。我不知道如何隐藏菜单。
我这里有代码:Codepen
function myFunction() {
var x = document.getElementById("myTopnav");
if (x.className === "topnav") {
x.className += " responsive";
} else {
x.className = "topnav";
}
}
$(document).ready(function() {
$('#nav-icon3').on('click', function() {
$(this).toggleClass('open');
});
});* {
box-sizing: border-box;
}
html, body {
padding: 0;
margin: 0;
width: 100%;
height: 100%;
font-size: 1rem;
}
.header {
background-color: #FFF;
width: 100%;
margin: 0px auto;
display: block;
top: 0;
margin-top: 7%;
height: 80px;
}
h1 {
margin-left: 5%;
padding-left: 1%;
font-family: 'Lobster', cursive;
margin-top: 0;
float: left;
margin-bottom: 0;
color: #D18E8F;
}
#nav-icon {
width: 30px;
height: 30px;
position: relative;
margin-right: 7%;
margin-top: 8px;
/*padding-right: 1%;*/
float: right;
-webkit-transform: rotate(0deg);
-moz-transform: rotate(0deg);
-o-transform: rotate(0deg);
transform: rotate(0deg);
-webkit-transition: .5s ease-in-out;
-moz-transition: .5s ease-in-out;
-o-transition: .5s ease-in-out;
cursor: pointer;
}
#nav-icon3 span {
display: block;
position: absolute;
height: 4px;
width: 100%;
background: #8c8c8c;
border-radius: 6px;
opacity: 1;
left: 0;
-webkit-transform: rotate(0deg);
-moz-transform: rotate(0deg);
-o-transform: rotate(0deg);
transform: rotate(0deg);
-webkit-transition: .25s ease-in-out;
-moz-transition: .25s ease-in-out;
-o-transition: .25s ease-in-out;
transition: .25s ease-in-out;
}
#nav-icon3 span:nth-child(1) {
top: 0px;
}
#nav-icon3 span:nth-child(2), #nav-icon3 span:nth-child(3) {
top: 10px;
}
#nav-icon3 span:nth-child(4) {
top: 20px;
}
#nav-icon3.open span:nth-child(1) {
top: 10px;
width: 0%;
left: 50%;
}
#nav-icon3.open span:nth-child(2) {
-webkit-transform: rotate(45deg);
-moz-transform: rotate(45deg);
-o-transform: rotate(45deg);
transform: rotate(45deg);
}
#nav-icon3.open span:nth-child(3) {
-webkit-transform: rotate(-45deg);
-moz-transform: rotate(-45deg);
-o-transform: rotate(-45deg);
transform: rotate(-45deg);
}
#nav-icon3.open span:nth-child(4) {
top: 10px;
width: 0%;
left: 50%;
}
.topnav.responsive {
/*display: none;*/
clear: both;
padding: 0;
height: 160px;
}
ul.topnav.responsive {
list-style: none;
font-family: 'Raleway', 'sans-serif';
float: left;
margin-left: 7%;
/*padding-left: 2%;*/
margin-top: 0;
width: 85%;
margin-bottom: 0;
}
ul.topnav.responsive li {
padding-top: 16px;
padding-bottom: 16px;
border-bottom: 1px solid #c6c6c6;
}
ul.topnav.responsive li a {
text-decoration: none;
color: #8c8c8c;
}
ul.topnav.responsive li a:hover {
color: #7EBEA3;
}<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial scale=1.0">
<title>Gabriella Farfan</title>
<link href="https://fonts.googleapis.com/css?family=Lobster|Raleway" rel="stylesheet">
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css">
<link rel="stylesheet" href="http://fortawesome.github.io/Font-Awesome/assets/font-awesome/css/font-awesome.css">
<link rel="stylesheet" type="text/css" href="css/style.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script src="js/main.js"></script>
</head>
<body>
<div class="header">
<h1>Gabriella Farfan</h1>
<div id="nav-icon">
<div id="nav-icon3">
<a id="nav-icon3" onclick="myFunction();">
<span></span>
<span></span>
<span></span>
<span></span>
</a>
</div>
</div>
<ul class="topnav" id="myTopnav">
<li>
<a href="#">Work</a>
</li>
<li>
<a href="About.html">About Me</a>
</li>
<li style="border-bottom: none">
<a href="#">Contact</a>
</li>
</ul>
</div>
</body>
</html>最佳答案
只需添加 .topnav { display: none; } 和 .topnav.responsive { display: block; } 并且您的代码将正常工作。
.topnav {
display: none;
}
.topnav.responsive {
display: block;
clear: both;
padding: 0;
height: 160px;
}
您还可以添加此内容以使完整的汉堡包可点击(不仅是行)。
#nav-icon3 {
width: 30px;
height: 30px;
display: block;
}
您的代码的工作分支:Сodepen
关于html - 切换菜单列表项显示，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/43565023/