ํจ๋ด๋ญ์ค ์ดํํธ 01
์ด๋ฒ ์๊ฐ์๋ ๊ทธ ๋์ ๋ฐฐ์ ๋ JavaScript๋ฅผ ์ด์ฉํ์ฌ ํจ๋ด๋ญ์ค(parallax, ํจ๋ด๋์ค) ์ดํํธ๋ฅผ ๋ง๋ค์ด๋ณด๋๋ก ํ๊ฒ ์ต๋๋ค. ๋จผ์ parallax๋, '์์ฐจ(่ฆๅทฎ)'๋ผ๋ ์๋ฏธ๋ฅผ ๊ฐ์ง ์ฒ๋ฌธํ ์ฉ์ด์ด๋ฉฐ, ์ด๋ฒ ํฌ์คํ ์์ ๋ด๋น๊ฒ์ด์ ๋ฐ์์ ํน์ ์น์ ์ผ๋ก ๊ฐ๋ ๋ฒํผ์ ๋๋ฅด๋ฉด ํด๋น ์น์ ์ผ๋ก ์์ฐจ๋ฅผ ๋๊ณ ์ค๋ฌด์คํ๊ฒ ์ด๋์์ผ ์ฃผ๋ ํจ๊ณผ๋ฅผ ๋ง๋ค์ด๋ณด๊ณ ์ ํฉ๋๋ค.
HTML ์์ค
header, parallax__nav(๋ด๋น๊ฒ์ด์ ), main(parallax__cont(๋ช ์ธ ๋ชจ์)), aside(parallax__info(์คํฌ๋กคํ๊ฐ)), footer(๋ชจ๋ฌ ๋ฐ์ค)๋ก ๊ตฌ์ฑ๋๋ค.
<body class="img10">
<header id="header">
<h1>JAVASCRIPT PARALLAX EFFECT 01</h1>
<p>ํจ๋ด๋ญ์ค ์ดํํธ</p>
<ul>
<li class="active"><a href="parallaxEffect01.html">01</a></li>
<li><a href="parallaxEffect02.html">02</a></li>
<li><a href="parallaxEffect03.html">03</a></li>
<li><a href="parallaxEffect04.html">04</a></li>
<li><a href="parallaxEffect05.html">05</a></li>
<li><a href="parallaxEffect06.html">06</a></li>
<li><a href="parallaxEffect07.html">07</a></li>
</ul>
</header>
<!-- //header -->
<nav id="parallax__nav">
<ul>
<li class="active"><a href="#section1">๋ฉ๋ด1</a></li>
<li><a href="#section2">๋ฉ๋ด2</a></li>
<li><a href="#section3">๋ฉ๋ด3</a></li>
<li><a href="#section4">๋ฉ๋ด4</a></li>
<li><a href="#section5">๋ฉ๋ด5</a></li>
<li><a href="#section6">๋ฉ๋ด6</a></li>
<li><a href="#section7">๋ฉ๋ด7</a></li>
<li><a href="#section8">๋ฉ๋ด8</a></li>
<li><a href="#section9">๋ฉ๋ด9</a></li>
</ul>
</nav>
<!-- //parallax__nav -->
<main id="parallax__cont">
<div id="contents">
<section id="section1" class="content__item">
<span class="content__item__num">01</span>
<h2 class="content__item__title">section1</h2>
<figure class="content__item__imgWrap">
<div class="content__item__img"></div>
</figure>
<p class="content__item__desc">๊ฒฐ๊ณผ๋ ์ค์ํ์ง๋ง, ๊ณผ์ ์ ๋ ์ค์ํ๊ฒ ์๊ฐํ๋ค.</p>
</section>
<!-- //section1 -->
<section id="section2" class="content__item">
<span class="content__item__num">02</span>
<h2 class="content__item__title">section2</h2>
<figure class="content__item__imgWrap">
<div class="content__item__img"></div>
</figure>
<p class="content__item__desc">์ธ์์์ ๋ง์ ํจ๋ฐฐ์ ์ง๋ฉดํ๊ฒ ์ง๋ง ๊ฒฐ์ฝ ํจ๋ฐฐํ์ง ๋ง๋ผ.</p>
</section>
<!-- //section2 -->
<section id="section3" class="content__item">
<span class="content__item__num">03</span>
<h2 class="content__item__title">section3</h2>
<figure class="content__item__imgWrap">
<div class="content__item__img"></div>
</figure>
<p class="content__item__desc">โ๋ด ๋ ๊ทธ๋ด ์ค ์์๋คโ ์์์ผ๋ฉด ์ ๋ฐ ๋ฏธ๋ฆฌ ๋ง ํด์ค๋ผ.</p>
</section>
<!-- //section3 -->
<section id="section4" class="content__item">
<span class="content__item__num">04</span>
<h2 class="content__item__title">section4</h2>
<figure class="content__item__imgWrap">
<div class="content__item__img"></div>
</figure>
<p class="content__item__desc">๋ฆ์๋ค๊ณ ์๊ฐํ ๋๊ฐ ์ง์ง ๋๋ฌด ๋ฆ์๋ค.</p>
</section>
<!-- //section4 -->
<section id="section5" class="content__item">
<span class="content__item__num">05</span>
<h2 class="content__item__title">section5</h2>
<figure class="content__item__imgWrap">
<div class="content__item__img"></div>
</figure>
<p class="content__item__desc">์ฆ๊ธธ ์ ์์ผ๋ฉด ํผํ๋ผ.</p>
</section>
<!-- //section5 -->
<section id="section6" class="content__item">
<span class="content__item__num">06</span>
<h2 class="content__item__title">section6</h2>
<figure class="content__item__imgWrap">
<div class="content__item__img"></div>
</figure>
<p class="content__item__desc">์ํ์ ๊ณผ๊ฐํ ๋ชจํ์ด๊ฑฐ๋ ์๋๋ฉด ์๋ฌด๊ฒ๋ ์๋๋ค.</p>
</section>
<!-- //section6 -->
<section id="section7" class="content__item">
<span class="content__item__num">07</span>
<h2 class="content__item__title">section7</h2>
<figure class="content__item__imgWrap">
<div class="content__item__img"></div>
</figure>
<p class="content__item__desc">์ด๋ ค์ด ๊ธธ์ ๊ธธ์ด ์๋๋ค.</p>
</section>
<!-- //section7 -->
<section id="section8" class="content__item">
<span class="content__item__num">08</span>
<h2 class="content__item__title">section8</h2>
<figure class="content__item__imgWrap">
<div class="content__item__img"></div>
</figure>
<p class="content__item__desc">์ ์ ์๋ ํผ๋ก๊ฐ ์ ํ๋ฆฌ๋.</p>
</section>
<!-- //section8 -->
<section id="section9" class="content__item">
<span class="content__item__num">09</span>
<h2 class="content__item__title">section9</h2>
<figure class="content__item__imgWrap">
<div class="content__item__img"></div>
</figure>
<p class="content__item__desc">์ธ์์ ์๋ํ ๋ชจํ์ด๊ฑฐ๋ ์๋๋ฉด ์๋ฌด๊ฒ๋ ์๋๋ค.</p>
</section>
<!-- //section9 -->
</div>
</main>
<!-- //main -->
<aside id="parallax__info">
<div class="scroll">scrollTop : <span>0</span>px</div>
<div class="info">
<ul>
<li>#section1 offset() : <span class="offset1">0</span>px</li>
<li>#section2 offset() : <span class="offset2">0</span>px</li>
<li>#section3 offset() : <span class="offset3">0</span>px</li>
<li>#section4 offset() : <span class="offset4">0</span>px</li>
<li>#section5 offset() : <span class="offset5">0</span>px</li>
<li>#section6 offset() : <span class="offset6">0</span>px</li>
<li>#section7 offset() : <span class="offset7">0</span>px</li>
<li>#section8 offset() : <span class="offset8">0</span>px</li>
<li>#section9 offset() : <span class="offset9">0</span>px</li>
</ul>
</div>
</aside>
<!-- //parallax__info -->
<footer id="footer">
<div class="modal__wrap">
</div>
</footer>
<!-- //footer -->
</body>
JS ์์ค : scrollTop๊ฐ ๊ตฌํ๊ธฐ / active ํจ๊ณผ ์๋์ํค๊ธฐ
์์(const) scroll์ ์์ฑํ์ฌ ๊ทธ ์์ "#parallax__info .scroll span"(์คํฌ๋กคํ ๊ฐ ํ์ํ๋ ๊ณณ)๊ณผ ์ฐ๊ฒฐ์ํจ๋ค.
๊ทธ๋ฐ ๋ค์, window.addEventListener๋ฅผ ํตํด ์คํฌ๋กคํ ๊ฐ์ ๊ตฌํ๊ณ forEach๋ฅผ ํตํด active ํจ๊ณผ๊ฐ ์ํํ๊ฒ
์๋ํ๋๋ก ์ค์ ํ๋ค.
๋ง์ง๋ง์ผ๋ก // Info ์์์ฒ๋ผ ์คํฌ๋กคํ๊ฐ์ด ํ๋ฉด์ ๋ณด์ผ ์ ์๋๋ก ํ๋ค.
const scroll = document.querySelector("#parallax__info .scroll span");
window.addEventListener("scroll", () => {
// scrollTop๊ฐ ๊ตฌํ๋ ๋ฐฉ๋ฒ 3๊ฐ์ง
// let scrollTop = window.pageYOffset;
// let scrollTop = window.scrollY;
// let scrollTop = document.documentElement.scrollTop;
// 3๊ฐ์ง๋ฅผ ๋ค ์จ๋ ์๊ด์์
let scrollTop = window.pageYOffset || window.scrollY || document.documentElement.scrollTop;
// active ํจ๊ณผ ์๋์ํค๊ธฐ (์๋)
// if(scrollTop >= document.getElementById("section1").offsetTop){
// document.querySelectorAll("#parallax__nav li").forEach(li => {
// li.classList.remove("active");
// });
// document.querySelector("#parallax__nav li:nth-child(1)").classList.add("active");
// }
// if(scrollTop >= document.getElementById("section2").offsetTop){
// document.querySelectorAll("#parallax__nav li").forEach(li => {
// li.classList.remove("active");
// });
// document.querySelector("#parallax__nav li:nth-child(2)").classList.add("active");
// }
// ์ด๊ฑธ 9๋ฒ์ด๋ ์จ์ค์ผ ํ๋ ๊ท์ฐฎ๊ธฐ ๋๋ฌธ์ for๋ฌธ / forEach๋ฌธ์ ์ฌ์ฉํด์ผ ํ๋ค.
// active ํจ๊ณผ ์๋์ํค๊ธฐ: for๋ฌธ
// for(let i=1; i<=9; i++) {
// if(scrollTop >= document.getElementById("section"+i).offsetTop){
// document.querySelectorAll("#parallax__nav li").forEach(li => {
// li.classList.remove("active");
// });
// document.querySelector("#parallax__nav li:nth-child("+i+")").classList.add("active");
// }
// }
// active ํจ๊ณผ ์๋์ํค๊ธฐ : forEach
document.querySelectorAll(".content__item").forEach((element, index) => {
if(scrollTop >= element.offsetTop -2){
document.querySelectorAll("#parallax__nav li").forEach(li => {
li.classList.remove("active");
});
document.querySelector("#parallax__nav li:nth-child("+(index+1)+")").classList.add("active");
}
});
// Info : ์คํฌ๋กคํ๊ฐ ํ์ํ๊ธฐ
// scroll.innerText = Math.round(scrollTop);
document.querySelector("#parallax__info .scroll span").innerText = Math.round(scrollTop);
// document.querySelector(".offset1").innerText = document.getElementById("section1").offsetTop;
// document.querySelector(".offset2").innerText = document.getElementById("section2").offsetTop;
// document.querySelector(".offset3").innerText = document.getElementById("section3").offsetTop;
// document.querySelector(".offset4").innerText = document.getElementById("section4").offsetTop;
// document.querySelector(".offset5").innerText = document.getElementById("section5").offsetTop;
// document.querySelector(".offset6").innerText = document.getElementById("section6").offsetTop;
// document.querySelector(".offset7").innerText = document.getElementById("section7").offsetTop;
// document.querySelector(".offset8").innerText = document.getElementById("section8").offsetTop;
// document.querySelector(".offset9").innerText = document.getElementById("section9").offsetTop;
for(let i=1; i<=9; i++) {
document.querySelector(".offset" + i).innerText = document.getElementById("section" + i).offsetTop;
}
});
// ์คํฌ๋กค ์ด๋
document.querySelectorAll("#parallax__nav li a").forEach(li => {
li.addEventListener("click", (e) => {
e.preventDefault();
document.querySelector(li.getAttribute("href")).scrollIntoView({
behavior: "smooth" // ์ด๋ ๋ถ๋๋ฝ๊ฒ
});
});
});
JS ์์ค : ์คํฌ๋กค ์ด๋ ํจ๊ณผ
์ด์ ๋ด๋น๊ฒ์ด์ ๋ฐ์์ ๋ฉ๋ด ๋ฒํผ์ ๋๋ฅผ ๋ ์คํฌ๋กค ์ด๋์ด ๋๋๋ก ์์ ํด์ฃผ๋๋ก ํ์. forEach๋ฌธ์ ์ด์ฉํด์ ์์ ํ๋ฉฐ, behavior : "smooth" ๋ฅผ ํตํด ์ด๋ ์ ๋๋ฉ์ด์ ์ ๋ถ๋๋ฝ๊ฒ (๋ง ๊ทธ๋๋ก ์ค๋ฌด์คํ๊ฒ) ์ค์ ํ ์ ์๋ค.
// ์คํฌ๋กค ์ด๋
document.querySelectorAll("#parallax__nav li a").forEach(li => {
li.addEventListener("click", (e) => {
e.preventDefault();
document.querySelector(li.getAttribute("href")).scrollIntoView({
behavior: "smooth" // ์ด๋ ๋ถ๋๋ฝ๊ฒ
});
});
});
CSS ์์ค
ํจ๋ด๋ญ์ค ํจ๊ณผ์๋ง ์ ์ฉ๋๋ CSS ์์ค์ด๋ค. ๊ณตํต/์ด๊ธฐํ ๋ถ๋ถ CSS๋ ํ๋จ์ CSS ์์ค ๋ณด๊ธฐ ๋ฒํผ์ ๋๋ฌ ํ์ธํ ๊ฒ.
<style>
/* 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;
height: 30px;
padding: 5px 20px;
text-align: center;
line-height: 30px;
}
#parallax__nav li.active a {
background: #fff;
color: #000;
border-radius: 20px;
box-sizing: content-box;
}
#parallax__cont {
max-width: 1600px;
width: 98%;
margin: 0 auto;
/* background-color: rgba(255,255,255,0.1); */
}
.content__item {
width: 1000px;
max-width: 70vw;
margin: 30vw auto;
/* background-color: rgba(255,255,255,0.1); */
text-align: left;
margin-right: 0;
position: relative;
padding-top: 7vw;
}
.content__item:nth-child(even) { /* even == ์ง์๋ง ์ ํ */
margin-left: 0;
text-align: right;
}
.content__item__num {
font-size: 35vw;
font-family: 'Lato';
font-weight: 100;
position: absolute;
left: -5vw;
top: -16vw;
opacity: 0.07;
z-index: -2;
}
.content__item:nth-child(even) .content__item__num {
left: auto;
right: -5vw;
}
.content__item__title {
font-weight: 400;
text-transform: capitalize;
}
.content__item__imgWrap {
width: 100%;
padding-bottom: 56.25%;
background: #000;
position: relative;
overflow: hidden;
z-index: -1;
}
.content__item__img {
position: absolute;
background-image: url(../assets/img/effect_bg10.jpg);
background-repeat: no-repeat;
background-position: center center;
background-size: cover;
width: 110%;
height: 110%;
left: -5%;
top: -5%;
filter: saturate(0%);
transition: all 1s;
}
.content__item:nth-child(1) .content__item__img {
background-image: url(../assets/img/effect_bg10.jpg);
}
.content__item:nth-child(2) .content__item__img {
background-image: url(../assets/img/effect_bg09.jpg);
}
.content__item:nth-child(3) .content__item__img {
background-image: url(../assets/img/effect_bg08.jpg);
}
.content__item:nth-child(4) .content__item__img {
background-image: url(../assets/img/effect_bg07.jpg);
}
.content__item:nth-child(5) .content__item__img {
background-image: url(../assets/img/effect_bg06.jpg);
}
.content__item:nth-child(6) .content__item__img {
background-image: url(../assets/img/effect_bg05.jpg);
}
.content__item:nth-child(7) .content__item__img {
background-image: url(../assets/img/effect_bg04.jpg);
}
.content__item:nth-child(8) .content__item__img {
background-image: url(../assets/img/effect_bg03.jpg);
}
.content__item:nth-child(9) .content__item__img {
background-image: url(../assets/img/effect_bg02.jpg);
}
.content__item__desc {
font-size: 4vw;
line-height: 1.4;
margin-top: -5vw;
margin-left: -4vw;
word-break: keep-all;
}
.content__item:nth-child(even) .content__item__desc {
margin-left: auto;
margin-right: -4vw;
}
#parallax__info {
position: fixed;
left: 20px;
bottom: 20px;
z-index: 2000;
background: rgba(0,0,0,0.4);
color: #fff;
padding: 20px 30px;
border-radius: 10px;
}
#parallax__info li, .scrollTop {
line-height: 1.4;
}
/* ๋ฐ์ํ */
@media (max-width: 800px) {
#parallax__cont {
margin-top: 70vw;
}
#parallax__nav {
padding: 10px;
right: auto;
left: 10px;
top: 50%;
transform: translateY(-50%);
border-radius: 5px;
background-color: rgba(0,0,0,0.8);
}
#parallax__nav li {
display: block;
margin: 5px;
}
#parallax__nav li a {
font-size: 14px;
padding: 5px;
border-radius: 5px;
height: auto;
line-height: 1;
}
#parallax__nav li.active a {
border-radius: 5px;
}
#parallax__info {
left: 10px;
bottom: 10px;
}
}
</style>
๋๊ธ