document.addEventListener('scroll', function() {
const navbar = document.querySelector(".nav-bar");
const navbarHeight = 10;
const distanceFromTop = Math.abs(
document.body.getBoundingClientRect().top
);
if (distanceFromTop >= navbarHeight) navbar.classList.add("nav-bar-fixed");
else navbar.classList.remove("nav-bar-fixed");
});
@import url('https://fonts.googleapis.com/css2?family=Tilt+Neon&display=swap');
body {
background-color: rgb(255, 255, 255);
margin: 0px;
box-sizing: border-box;
font-family: 'Tilt Neon', cursive;
}
.nav-bar {
width: 100%;
position: fixed;
z-index: 1;
display: flex;
align-items: center;
justify-content: space-between;
background-color: rgb(255, 255, 255);
border-bottom: black 5px solid;
transition: 2s;
}
.nav-bar-anim {
height: 12vh;
transition: 2s;
}
.nav-bar-fixed {
height: 8vh;
transition: 2s;
}
.logo {
width: 110px;
}
.logo img {
width: 100%;
object-fit: cover;
}
.nav-items {
display: flex;
justify-content: space-between;
gap: 20px;
margin-right: 5%;
}
.nav-items a {
font-size: 5vw;
text-decoration: none;
color: black;
}
/* main-sector */
.main-section {
background-image: url(img/famous-japanese-food-sushi.jpg);
height: 300px;
width: 100%;
padding-top: 80px;
background-size: cover;
backdrop-filter: blur(5px);
position: relative;
}
.main-section .blur {
width: 100%;
height: 100%;
backdrop-filter: blur(2px);
}
.main-section a {
position: absolute;
top: 70%;
left: 50%;
transform: translate(-50%, -50%);
-ms-transform: translate(-50%, -50%);
font-size: 4vw;
padding: 20px;
text-decoration: none;
color: rgb(0, 0, 0);
background: rgb(255, 255, 255);
border: 2px solid rgb(0, 0, 0);
}
.main-section .line {
position: absolute;
top: 75%;
left: 50%;
transform: translate(-50%, -50%);
-ms-transform: translate(-50%, -50%);
height: .5%;
background-color: rgb(150, 29, 29);
animation: expandline 5s forwards;
}
.second-section {
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
width: 100%;
height: 40vh;
border-top: 4px solid black;
;
border-bottom: 4px solid black;
gap: 40px;
}
.second-section a {
text-decoration: none;
font-size: 2em;
border: 2px solid black;
padding: 10px 20px;
}
.color-change {
color: black;
transition: 2s;
}
@media (min-width: 800px) {
.nav-bar {
height: 16vh;
}
.nav-bar-fixed {
height: 12vh;
transition: 2s;
}
.logo {
width: 10%;
}
.nav-items {
gap: 30px;
}
.nav-items a {
font-size: 2em;
}
.main-section {
height: 80vh;
width: 100%;
}
}
.nav-items a:hover {
color: red;
transition: 1s;
}
@keyframes expandline {
from {
width: 0%;
}
to {
width: 20%;
}
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="home.css">
<title>Sushi</title>
</head>
<body>
<div class="nav-bar" class="nav-bar-anim" class="nav-bar-anim">
<div class="logo">
<img src="img/logo.webp" alt="">
</div>
<div class="nav-items">
<a href="">Contact</a>
<a href="">Order</a>
<a href="">About</a>
</div>
</div>
<div class="main-section">
<div class="blur"></div>
<div class="line" class="first-line"></div>
<a href="tel:747-272-2997">Order Now</a>
<div class="line"></div>
</div>
<div class="second-section">
<h1>Check Out Our Menu</h1>
<a class="color-change" href="">Menu</a>
</div>
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ipsam libero sequi ut consequatur. Laboriosam libero recusandae reiciendis ipsum, harum deleniti itaque doloremque officia praesentium voluptatibus similique dolores? In facilis impedit officia obcaecati ex tempore, quod laboriosam dicta voluptatibus?
Qui quasi eius debitis! Neque minus maiores voluptates, quas architecto laboriosam perspiciatis explicabo vel quis, voluptas ipsam nemo omnis ipsum nesciunt? A incidunt amet cupiditate odio consectetur aperiam ex animi eum corrupti minus dolorum, doloremque
cum perspiciatis ad velit quas veritatis labore nisi qu
</body>
<script src="home.js"></script>
</html>
我正在尝试建立一个寿司网站，但在全屏桌面中向下滚动时，我的主要部分图像不断振动。当向下滚动导航栏时，我的导航栏也无法在移动版本中工作，导航栏不会像在桌面中那样折叠得更小。我还遇到了首次访问网站时无法加载动画的问题。
我想说，导航栏未折叠的移动版本是因为 javascript 事件侦听器没有接收到“滚动”事件，可能它在移动设备上被命名为不同的事件，或者可能它从来没有达到一定的数量移动设备顶部的空间？为了测试这一点，我建议在“滚动”事件侦听器中执行 console.log（从顶部开始的空格或其他内容）。至于振动，也许可以尝试消除过程，只是从你的CSS中删除随机的东西，直到它起作用？至于动画，我不知道。