javascript - 菜单按钮有问题,切换功能不起作用
问题描述
我对较小屏幕尺寸设备(宽度小于 700 像素)上的菜单按钮有疑问。切换功能不起作用。我不知道出了什么问题。我设置了一个按钮以显示小于 700 像素的屏幕尺寸,隐藏我的社交菜单,并提供了一个真正的菜单适当的宽度。另外,我已经为“show”类设置了 CSS,但我不知道如何在“main-nav ul”上签名。我希望你能得到我。这是我的 HTML、CSS 和 JS 代码:
以 JS 脚本结尾的 HTML
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.2/css/all.min.css">
<link rel="icon" href="img/favicon.ico" type="image/x-icon">
<link rel="stylesheet" href="style.css">
<title>Responsive Navigation Menu Bar</title>
</head>
<body>
<section class="top-bar">
<div class="container">
<div class="top-bar-content">
<div class="logo">
<img src="img/Logo.png" alt="Gravitarium logo">
</div>
<div class="info flex">
<div class="info-content flex">
<div class="icon">
<i class="fas fa-phone"></i>
</div>
<div class="infos">
<a href="tel:+180045678923"><p>Have Any Questions?</p></a>
<p>+1-800-456-789-23</p>
</div>
</div>
<div class="info-content flex">
<div class="icon">
<i class="fas fa-map-marked-alt"></i>
</div>
<div class="infos">
<p>Visit Us Daily</p>
<p>My Street 69, Novi Sad</p>
</div>
</div>
<div class="info-content flex">
<div class="icon">
<i class="fas fa-hourglass-half"></i>
</div>
<div class="infos">
<p>Our Working Hours</p>
<p>Mon-Fri: 8.00 - 18.00</p>
</div>
</div>
</div>
</div>
</div>
</section>
<navigation class="menu">
<div class="container">
<div class="menu-btn">
<i class="fas fa-bars fa-2x"></i>
</div>
<div class="nav flex">
<div class="main-nav">
<ul>
<li><a href="index.html">Home</a></li>
<li><a href="#">About Us</a></li>
<li><a href="#">Portfolio</a></li>
<li><a href="#">Services</a></li>
<li><a href="#">Blog</a></li>
<li><a href="#">Contact</a></li>
</ul>
</div>
<div class="social-nav">
<ul >
<li><a href="https://twitter.com" target="_blank"><i class="fab fa-twitter"></i></a></li>
<li><a href="https://facebook.com" target="_blank"><i class="fab fa-facebook"></i></a></li>
<li><a href="https://pinterest.com" target="_blank"><i class="fab fa-pinterest"></i></a></li>
<li><a href="https://instagram.com" target="_blank"><i class="fab fa-instagram"></i></a></li>
<li><a href="https://github.com" target="_blank"><i class="fab fa-github"></i></a></li>
</ul>
</div>
</div>
</div>
</navigation>
<script>
document.querySelector('.menu-btn').addEventListener('click', () => document.querySelector('.main-nav ul').classList.toggle('.show'));
</script>
</body>
</html>
=====CSS=====
@import url('https://fonts.googleapis.com/css2?family=Work+Sans:wght@200;300;400;500&display=swap');
:root {
--pc: #f7941d; /*Primary Color*/
--sc: #cfcfcf; /*Secondary Color*/
}
* {
margin: 0;
padding: 0;
box-sizing: border-box;
font-family: 'Work Sans', sans-serif;
}
img {
width: 100%;
}
body {
background: var(--sc);
}
a, ul {
list-style: none;
text-decoration: none;
color: #000;
}
.container {
max-width: 1200px;
padding: 0 10px;
margin: 0 auto;
}
.flex {
display: flex;
justify-content: space-between;
align-items: center;
}
.top-bar {
background: #333;
padding: 20px 0 40px 0;
}
.top-bar-content {
display: grid;
grid-template-columns: 1fr 2fr;
align-items: center;
}
.top-bar-content .logo {
width: 35%;
}
.top-bar-content .info i {
color: var(--pc);
margin-right: 20px;
font-size: 30px;
}
.top-bar-content .infos p:first-child {
margin-bottom: 10px;
color: var(--sc) !important;
font-weight: 200;
}
.top-bar-content .infos p:last-child {
color: #fff;
}
@media (max-width: 1024px) {
.top-bar-content .info-content {
flex-direction: column;
text-align: center;
}
.top-bar-content .info i {
font-size: 24px;
margin-bottom: 5px;
}
.top-bar-content .infos p:first-child {
margin-bottom: 2px;
}
}
@media (max-width: 768px) {
.top-bar-content .info i {
font-size: 18px;
margin-bottom: 5px;
}
.top-bar-content .infos p {
font-size: 14px;
}
}
@media (max-width: 700px) {
.top-bar-content .info i {
display: none;
}
.top-bar-content .info {
flex-direction: column;
}
.top-bar-content .infos {
margin-bottom: 15px;
border-bottom: 1px dashed var(--sc);
}
.top-bar-content .logo {
width: 100%;
}
}
/* Navigation Style */
.menu .container {
background-color: #fff;
padding: 30px;
border-radius: 5px;
margin-top: -30px;
}
.menu .nav {
display: grid;
grid-template-columns: 2fr 1fr;
}
.menu .main-nav ul,
.menu .social-nav ul {
display: flex;
align-items: center;
}
.menu .social-nav ul {
justify-content: flex-end;
}
.menu .main-nav ul li:nth-child(n+1) {
margin-right: 30px;
}
.menu .main-nav ul li a {
font-weight: 500;
}
.menu .main-nav ul li a:hover {
color: var(--pc);
transition: .3s;
border-bottom: 5px solid var(--pc);
}
.menu .social-nav ul li:nth-last-child(n+2) {
margin-right: 30px;
}
.menu .social-nav ul li a {
font-size: 20px;
}
.menu .social-nav ul li a:hover {
color: var(--pc);
transition: .3s;
}
.menu .social-nav ul li:hover {
transform: rotate(720deg);
transition: 1s;
}
.menu-btn {
cursor: pointer;
position: absolute;
top: 130px;
right: 30px;
z-index: 2;
display: none;
}
@media (max-width: 968px) {
.social-nav {
display: none;
}
.menu .nav {
grid-template-columns: auto;
}
}
@media (max-width: 700px) {
.menu-btn {
display: block;
top: 195px;
}
.menu-btn:hover {
color: var(--pc);
transition: .3s;
}
.menu .main-nav ul {
display: block;
position: absolute;
top: 0;
left: 0;
background: #f2f2f2;
width: 50%;
height: 100%;
border-right: 1px solid #ccc;
opacity: 0.9;
padding: 20px 0 0 20px;
transform: translateX(-500px);
}
.menu .main-nav ul.show {
transform: translateX(0px);
}
.menu .main-nav ul li {
padding: 10px;
border-bottom: 1px dashed #ccc;
font-size: 14px;
}
.menu .main-nav ul li:last-child {
border-bottom: 0;
}
}
解决方案
你为什么不为此使用引导程序? https://getbootstrap.com/docs/4.0/components/navbar/ 在一定宽度下它会自动折叠,你可以点击它来切换它
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