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패럴랙스 효과 03/04
Kim do hyun
2023. 5. 15. 19:25
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패럴랙스 효과
HTML
<!DOCTYPE html>
<html lang="ko">
<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">
<title>패럴랙스 이펙트03</title>
<link rel="stylesheet" href="css/reset.css">
<link rel="stylesheet" href="css/parallax.css">
<style>
.parallax__nav {
top: -100px;
transition: all 0.6s;
}
.parallax__nav.show {
top: 10px;
}
</style>
</head>
<body class="img01 bg01 Eulyoo">
<header id="header">
<h1>Javascript Parallax Effect03</h1>
<p>패럴랙스 이펙트 : 숨김 메뉴 / 탑 버튼</p>
<ul>
<li><a href="parallaxEffect01.html">1</a></li>
<li><a href="parallaxEffect02.html">2</a></li>
<li class="active"><a href="parallaxEffect03.html">3</a></li>
<li><a href="parallaxEffect04.html">4</a></li>
<li><a href="parallaxEffect05.html">5</a></li>
<li><a href="parallaxEffect06.html">5</a></li>
<li><a href="parallaxEffect07.html">5</a></li>
</ul>
</header>
<!-- header -->
<nav class="parallax__nav show">
<ul>
<li class="active"><a href="#section1">메뉴1</a></li> <!-- li*9>a[href="#section$"]{메뉴$} -->
<li><a href="#section2">메뉴2</a></li>
<li><a href="#section3">메뉴3</a></li>
<li><a href="#section4">메뉴4</a></li>
<li><a href="#section5">메뉴5</a></li>
<li><a href="#section6">메뉴6</a></li>
<li><a href="#section7">메뉴7</a></li>
<li><a href="#section8">메뉴8</a></li>
<li><a href="#section9">메뉴9</a></li>
</ul>
</nav>
<!-- //parallax__nav -->
<main id="main">
<div class="parallax__wrap">
<section id="section1" class="parallax__item">
<span class="parallax__item__num">01</span>
<h2 class="parallax__item__title">section1</h2>
<figure class="parallax__item__imgWrap">
<div class="parallax__item__img"></div>
</figure>
<p class="parallax__item__desc">늦었다고 생각할때가 정말 너무 늦었다. 그러니 지금 당장 시작해라.</p>
</section>
<!--//section1-->
<section id="section2" class="parallax__item">
<span class="parallax__item__num">02</span>
<h2 class="parallax__item__title">section2</h2>
<figure class="parallax__item__imgWrap">
<div class="parallax__item__img"></div>
</figure>
<p class="parallax__item__desc">하루에 3시간을 걸으면 7년 후에 지구를 한바퀴 돌 수 있다.</p>
</section>
<!--//section2-->
<section id="section3" class="parallax__item">
<span class="parallax__item__num">03</span>
<h2 class="parallax__item__title">section3</h2>
<figure class="parallax__item__imgWrap">
<div class="parallax__item__img"></div>
</figure>
<p class="parallax__item__desc">피할수 없으면 즐겨라</p>
</section>
<!--//section3-->
<section id="section4" class="parallax__item">
<span class="parallax__item__num">04</span>
<h2 class="parallax__item__title">section4</h2>
<figure class="parallax__item__imgWrap">
<div class="parallax__item__img"></div>
</figure>
<p class="parallax__item__desc">단순하게 살아라. 현대인은 쓸데없는 절차와 일 때문에 얼마나 복잡한 삶을 살아가는가?</p>
</section>
<!--//section4-->
<section id="section5" class="parallax__item">
<span class="parallax__item__num">05</span>
<h2 class="parallax__item__title">section5</h2>
<figure class="parallax__item__imgWrap">
<div class="parallax__item__img"></div>
</figure>
<p class="parallax__item__desc">한번의 실패와 영원한 실패를 혼동하지 마라</p>
</section>
<!--//section5-->
<section id="section6" class="parallax__item">
<span class="parallax__item__num">06</span>
<h2 class="parallax__item__title">section6</h2>
<figure class="parallax__item__imgWrap">
<div class="parallax__item__img"></div>
</figure>
<p class="parallax__item__desc">평생 살 것처럼 꿈을 꾸어라.그리고 내일 죽을 것처럼 오늘을 살아라.</p>
</section>
<!--//section6-->
<section id="section7" class="parallax__item">
<span class="parallax__item__num">07</span>
<h2 class="parallax__item__title">section7</h2>
<figure class="parallax__item__imgWrap">
<div class="parallax__item__img"></div>
</figure>
<p class="parallax__item__desc">1퍼센트의 가능성, 그것이 나의 길이다. </p>
</section>
<!--//section7-->
<section id="section8" class="parallax__item">
<span class="parallax__item__num">08</span>
<h2 class="parallax__item__title">section8</h2>
<figure class="parallax__item__imgWrap">
<div class="parallax__item__img"></div>
</figure>
<p class="parallax__item__desc">마음만을 가지고 있어서는 안된다. 반드시 실천하여야 한다.</p>
</section>
<!--//section8-->
<section id="section9" class="parallax__item">
<span class="parallax__item__num">09</span>
<h2 class="parallax__item__title">section9</h2>
<figure class="parallax__item__imgWrap">
<div class="parallax__item__img"></div>
</figure>
<p class="parallax__item__desc">눈물과 더불어 빵을 먹어 보지 않은 자는 인생의 참다운 맛을 모른다.</p>
</section>
<!--//section9-->
</div>
</main>
<!-- //main -->
<aside class="parallax__info">
<div class="scroll">scrollTop : <span>0</span>px</div>
</aside>
<!--//parallax__info-->
<div class="parallax__top">
<a>Top</a>
</div>
<!-- parallax__top -->
<footer id="footer">
<a href="mailto:kshkmn0929@naver.com">kshkmn0929@naver.com</a>
</footer>
<!-- footer -->CSS
@import url('https://fonts.googleapis.com/css2?family=Lato:wght@100&display=swap');
main {
width: 100%;
overflow: hidden;
}
/* header */
#header {
position: absolute;
left: 20px;
top: 20px;
}
#header h1 {
margin-bottom: 0.3em;
}
#header ul {
margin-top: 0.6em;
}
#header li {
display: inline-block;
}
#header li a {
color: #fff;
border: 1px solid #fff;
width: 30px;
height: 30px;
line-height: 30px;
display: inline-block;
border-radius: 50%;
text-align: center;
}
#header li.active a {
background: #fff;
color: #000;
}
/* footer */
#footer {
text-align: center;
padding: 100px 0;
}
#footer a {
color: #fff;
font-size: 14px;
}
#footer a:hover {
text-decoration: underline;
}
/* parallax__nav */
.parallax__nav {
position: fixed;
right: 20px;
top: 20px;
z-index: 2000;
background-color: rgba(0, 0, 0, 0.4);
padding: 20px 30px;
border-radius: 50px;
}
.parallax__nav li {
display: inline;
margin: 0 5px;
}
.parallax__nav li a {
display: inline-block;
padding: 5px 20px;
text-align: center;
line-height: 30px;
color: #fff;
}
.parallax__nav li.active a {
background-color: #fff;
color: #000;
border-radius: 20px;
box-sizing: content-box;
}
/* parallax__wrap */
.parallax__wrap {
max-width: 1600px;
width: 98%;
margin: 0 auto;
/* background-color: rgba(255, 255, 255, 0.1); */
}
.parallax__item {
width: 1000px;
max-width: 78vw;
margin: 30vw auto;
/* background-color: rgba(255, 255, 255, 0.3); */
margin-right: 0;
position: relative;
padding-top: 8vw;
}
.parallax__item:nth-child(even){
margin-left: 0;
text-align: right;
}
.parallax__item__num {
font-size: 35vw;
font-weight: 300;
font-family: Lato;
position: absolute;
left: -5vw;
top: -16vw;
opacity: 0.07;
z-index: -2;
}
.parallax__item:nth-child(even) .parallax__item__num {
left: auto;
right: -5vw;
}
.parallax__item__title {
font-weight: bold;
}
.parallax__item__imgWrap {
width: 100%;
padding-bottom: 56.25%;
background-color: #000;
position: relative;
z-index: -1;
overflow: hidden;
}
.parallax__item__img {
position: absolute;
left: -5%;
top: -5%;
width: 110%;
height: 110%;
background-image: url(../img/parallaxEffect01.jpg);
background-repeat: no-repeat;
background-position: center center;
background-size: cover;
filter: saturate(0%);
transition: filter 1s;
}
.parallax__item:nth-child(1) .parallax__item__img {
background-image: url(../img/parallaxEffect01.jpg);
}
.parallax__item:nth-child(2) .parallax__item__img {
background-image: url(../img/parallaxEffect02.jpg);
}
.parallax__item:nth-child(3) .parallax__item__img {
background-image: url(../img/parallaxEffect03.jpg);
}
.parallax__item:nth-child(4) .parallax__item__img {
background-image: url(../img/parallaxEffect04.jpg);
}
.parallax__item:nth-child(5) .parallax__item__img {
background-image: url(../img/parallaxEffect05.jpg);
}
.parallax__item:nth-child(6) .parallax__item__img {
background-image: url(../img/parallaxEffect06.jpg);
}
.parallax__item:nth-child(7) .parallax__item__img {
background-image: url(../img/parallaxEffect07.jpg);
}
.parallax__item:nth-child(8) .parallax__item__img {
background-image: url(../img/parallaxEffect08.jpg);
}
.parallax__item:nth-child(9) .parallax__item__img {
background-image: url(../img/parallaxEffect09.jpg);
}
.parallax__item__desc {
font-size: 3.5vw;
line-height: 1.4;
margin-top: -5vw;
margin-left: -4vw;
word-break: keep-all;
}
.parallax__item:nth-child(even) .parallax__item__desc {
margin-left: auto;
margin-right: -4vw;
}
.parallax__info {
position: fixed;
left: 20px;
bottom: 20px;
background-color: rgba(0, 0, 0, 0.6);
color: #fff;
padding: 20px;
border-radius: 10px;
font-size: 14px;
line-height: 1.4;
}
.parallax__dot {
position: fixed;
right: 20px;
top: 50%;
transform: translateY(-50%);
z-index: 1000;
background-color: rgba(0, 0, 0, 0.4);
padding: 20px 10px;
border-radius: 30px;
}
.parallax__dot li {
position: relative;
width: 20px;
height: 20px;
border-radius: 50%;
margin: 12px 8px;
box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.1);
text-indent: -9999px;
transition: box-shadow .2s ease;
}
.parallax__dot a {
background: #fff;
width: 100%;
height: 100%;
position: absolute;
left: 0;
top: 0;
border-radius: 50%;
transition: transform .2s ease;
}
.parallax__dot li.active {
box-shadow: 0 0 0 2px rgba(255, 255, 255, 1);
}
.parallax__dot li.active a {
transform: scale(0.4);
}
.parallax__top {
position: fixed;
right: -200px;
bottom: 20px;
z-index: 1000;
transition: all 0.3s;
}
.parallax__top.show {
right: 20px;
}
.parallax__top a {
display: block;
width: 40px;
height: 40px;
line-height: 40px;
background-color: rgba(255, 255, 255, 1);
border-radius: 50%;
color: #000;
text-align: center;
font-size: 14px;
cursor: pointer;
}
.parallax__top a:hover {
background-color: #000;
color: #fff;
}
@media (max-width: 1200px){
.parallax__nav {
padding: 10px;
background-color: rgba(0, 0, 0, 0);
right: 10px;
left: 10px;
top: 10px;
border-radius: 5px;
text-align: center;
}
.parallax__nav li {
margin: 2px;
}
.parallax__nav li a {
font-size: 12px;
padding: 0 14px;
}
}JAVASCRIPT
// 01 메뉴
// window.addEventListener("scroll", () => {
// let scrollTop = window.pageYOffset || window.scrollY;
// if(scrollTop > 0){
// document.querySelector(".parallax__nav").classList.add("show");
// } else {
// document.querySelector(".parallax__nav").classList.remove("show");
// }
// document.querySelector(".scroll span").innerText = Math.round(scrollTop);
// });
// 문서의 높이
// document.body.scrollHeight
// document.body.offsetHeight
// document.documentElement.scrollHeight
// document.documentElement.offsetHeight
// 탑 버튼
window.addEventListener("scroll", () => {
let scrollTop = window.pageYOffset || window.scrollY;
if(scrollTop > document.body.scrollHeight - 1000){
document.querySelector(".parallax__top").classList.add("show");
} else {
document.querySelector(".parallax__top").classList.remove("show");
}
});
document.querySelector(".parallax__top").addEventListener("click", () => {
window.scrollTo({top: 0, behavior: "smooth"});
});
// 03 메뉴
let nowScroll = true;
let lastScroll = 0;
function scrollProgress (){
nowScroll = true;
setInterval(() => {
if(nowScroll){
nowScroll = false;
hasScroll();
}
}, 300);
}
function hasScroll (){
let scrollTop = window.pageYOffset || window.scrollY;
if(scrollTop < lastScroll){
document.querySelector(".parallax__nav").classList.add("show");
} else {
document.querySelector(".parallax__nav").classList.remove("show");
}
lastScroll = scrollTop;
document.querySelector(".scroll span").innerText = Math.round(scrollTop);
}
window.addEventListener("scroll", scrollProgress);코드 설명
스크롤 이벤트 리스너 등록
웹 페이지를 스크롤할 때 발생하는 이벤트를 감지하고, 이벤트가 발생하면 실행할 함수를 등록하는 코드입니다.
스크롤 위치에 따른 상황 처리
웹 페이지를 스크롤할 때 스크롤 위치를 계산하고, 스크롤 위치에 따라 상황을 처리하는 코드입니다. 스크롤 위치가 일정 값 이하로 내려가면 .parallax__top 클래스를 가진 요소에 show 클래스를 추가합니다. 반대로, 스크롤 위치가 일정 값 이상으로 올라가면 show 클래스를 삭제합니다. 또한, 스크롤 위치를 계산하여 .scroll span 요소의 내용을 업데이트합니다.
메뉴 관련 처리
웹 페이지를 스크롤할 때, 스크롤 위치에 따라 .parallax__nav 클래스를 가진 요소에 show 클래스를 추가 또는 삭제하는 코드입니다. scrollProgress 함수는 0.3초 간격으로 hasScroll 함수를 실행합니다. hasScroll 함수는 스크롤 위치를 계산하고, 이전 스크롤 위치와 비교하여 .parallax__nav 요소에 show 클래스를 추가 또는 삭제합니다.