我已经在我header类中建立了一个导航列表，在js文件中也有一个函数来引导另一个类，当在mobile view<768px中单击时，该类将使导航出现和消失。 无法理解为什么id不能像现在这样在点击时显示，无法使其工作，请帮助。
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Zakład Kamieniarski - Krzysztof Posiadała</title>
<link href="https://fonts.googleapis.com/css2?family=Rokkitt:wght@100;200;300;400;500;600;700;800;900&display=swap" rel="stylesheet">
<link rel="stylesheet" href="css/main.css">
</head>
<body>
<section class="header">
<nav class="nav">
<div class="logo">
<h4>The Nav</h4>
</div>
<ul class="nav__list">
<li class="nav__item"><a href="#" class="nav__link">Strona Główna</a></li>
<li class="nav__item"><a href="#" class="nav__link">O nas</a></li>
<li class="nav__item"><a href="#" class="nav__link">Oferta</a></li>
<li class="nav__item"><a href="#" class="nav__link">Kamień</a></li>
<li class="nav__item"><a href="#" class="nav__link">Kontakt</a></li>
</ul>
<div class="burger">
<div class="burger__line1"></div>
<div class="burger__line2"></div>
<div class="burger__line3"></div>
</div>
</nav>
<div class="MainText">
<h1 class="Company__name">
Zakład Kamieniarski
</h1>
<h2 class="Company__owner">
Krzysztof Posiadała
</h2>
</div>
</section>
<script src="js/main.js"></script>
</body>
</html>
然后css文件:
html {
font-size: 62.5%;
}
body {
-webkit-box-sizing: border-box;
box-sizing: border-box;
}
@media screen and (max-width: 768px) {
body {
overflow-x: hidden;
}
}
*,
*::after,
*::before {
margin: 0;
padding: 0;
-webkit-box-sizing: inherit;
box-sizing: inherit;
}
body {
font-family: 'Rokkitt', serif;
font-weight: 400;
line-height: 1.7;
color: #fff;
}
.header {
background: -webkit-gradient(linear, left top, left bottom, from(rgba(0, 0, 0, 0.15)), to(rgba(0, 0, 0, 0.15))), url(../img/hero-img.jpg);
background: linear-gradient(rgba(0, 0, 0, 0.15), rgba(0, 0, 0, 0.15)), url(../img/hero-img.jpg);
background-size: cover;
height: 100vh;
}
.nav {
display: -webkit-box;
display: -ms-flexbox;
display: flex;
-ms-flex-pack: distribute;
justify-content: space-around;
-webkit-box-align: center;
-ms-flex-align: center;
align-items: center;
min-height: 4rem;
background: -webkit-gradient(linear, left top, left bottom, from(rgba(0, 0, 0, 0.5)), to(rgba(0, 0, 0, 0.5)));
background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5));
}
.nav__list {
display: -webkit-box;
display: -ms-flexbox;
display: flex;
-ms-flex-pack: distribute;
justify-content: space-around;
width: 40%;
}
@media screen and (max-width: 1300px) {
.nav__list {
width: 50%;
}
}
@media screen and (max-width: 1024px) {
.nav__list {
width: 65%;
}
}
@media screen and (max-width: 768px) {
.nav__list {
position: absolute;
right: 0;
height: 50vh;
top: 4rem;
background: -webkit-gradient(linear, left top, left bottom, from(rgba(0, 0, 0, 0.5)), to(rgba(0, 0, 0, 0.5)));
background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5));
display: -webkit-box;
display: -ms-flexbox;
display: flex;
-webkit-box-orient: vertical;
-webkit-box-direction: normal;
-ms-flex-direction: column;
flex-direction: column;
-webkit-box-align: center;
-ms-flex-align: center;
align-items: center;
width: 42%;
-webkit-transform: translateX(100%);
transform: translateX(100%);
}
}
.nav__item {
list-style-type: none;
}
@media screen and (max-width: 768px) {
.nav__item {
opacity: 0;
}
}
.nav__link {
color: #fff;
text-decoration: none;
letter-spacing: 3px;
font-weight: 700;
font-size: 1.6rem;
}
.logo {
color: #fff;
text-transform: uppercase;
letter-spacing: 5px;
font-size: 2rem;
}
.burger {
display: none;
cursor: pointer;
}
.burger__line1, .burger__line2, .burger__line3 {
width: 20px;
height: 3px;
background-color: #fff;
margin: 3px;
}
@media screen and (max-width: 768px) {
.burger {
display: block;
}
}
.nav-active {
-webkit-transform: translateX(0);
transform: translateX(0);
-webkit-transition: -webkit-transform 0.5s ease-in;
transition: -webkit-transform 0.5s ease-in;
transition: transform 0.5s ease-in;
transition: transform 0.5s ease-in, -webkit-transform 0.5s ease-in;
}
和js文件:
const navSlide = () => {
const burger = document.querySelector(".burger");
const nav = document.querySelector(".nav__list");
burger.addEventListener("click", () => {
nav.classList.toggle(".nav-active");
});
}
const app = () => {
navSlide();
}
我不知道为什么我的js函数不能工作，当我点击burger类。nav-active不启动。
请帮帮忙
在JS中，您正在调用app内部的navSlide()，但没有调用app函数。 如果从不调用app()，则从不调用navSlide()；如果从不调用navSlide()，则从不将事件侦听器添加到汉堡中。
您只需调用app()。
const navSlide = () => {
const burger = document.querySelector(".burger");
const nav = document.querySelector(".nav__list");
burger.addEventListener("click", () => {
nav.classList.toggle(".nav-active");
});
}
const app = () => {
navSlide();
}
app(); // add this
另外，您应该考虑将汉堡转换为一个适当的button元素（带有type=“button”)。 屏幕阅读器和键盘用户更容易使用。
