패럴랙스 이펙트 - 텍스트 효과

패럴랙스 효과

패럴랙스 이펙트 - 텍스트 효과

스크롤값에 따라서 텍스트가 하나 하나 씩 딜레이를 줘서 나타나게 만들어보겠습니다.

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결과

원본 소스 보기 원본 사이트 보기

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HTML 작성

각각의 섹션을 만들고 보기 편하게 하기 위해서 스크롤 탑값을 보여주는 태그를 만들어줍니다.

소스 보기

<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 split">산다는것 그것은 치열한 전투이다.</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 split">하루에 3시간을 걸으면 7년 후에 지구를 한바퀴 돌 수 있다.</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 split">내일은 내일의 태양이 뜬다.</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 split">배고픈 자 밥솥을 열어라.</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 split">그대 자신의 영혼을 탐구하라.</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 split">돈이 없는 것은 죄다.</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 split">무전 유죄, 유전 무죄</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 split">내 주머니의 푼돈이 남 주머니에 있는 거금보다 낫다.</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 split">최고에 도달하려면 최저에서 시작하라.</p>
        </section>
        <!-- //section9 -->
    </div>
</main>

CSS 작성

CSS를 수작업으로 작성할시 매우 많아지기때문에 스크립트를 사용했습니다.

결과

/* 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;
    transition: top 0.4s ease;
}
#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, 0.3); */
    text-align: left;
    margin-right: 0;
    position: relative;
    padding-top: 8vw;
}
.content__item:nth-child(even) {
    margin-left: 0;
    text-align: right;
}
.content__item__num {
    font-size: 35vw;
    font-weight: 100;
    font-family: 'Lato';
    position: absolute;
    left: -5vw;
    top: -13vw;
    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: url(../assets/img/effect_bg19@2x.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_bg18@2x.jpg);
}
.content__item:nth-child(2) .content__item__img {
    background-image: url(../assets/img/effect_bg19@2x.jpg);
}
.content__item:nth-child(3) .content__item__img {
    background-image: url(../assets/img/effect_bg20@2x.jpg);
}
.content__item:nth-child(4) .content__item__img {
    background-image: url(../assets/img/effect_bg17@2x.jpg);
}
.content__item:nth-child(5) .content__item__img {
    background-image: url(../assets/img/effect_bg16@2x.jpg);
}
.content__item:nth-child(6) .content__item__img {
    background-image: url(../assets/img/effect_bg15@2x.jpg);
}
.content__item:nth-child(7) .content__item__img {
    background-image: url(../assets/img/effect_bg14@2x.jpg);
}
.content__item:nth-child(8) .content__item__img {
    background-image: url(../assets/img/effect_bg13@2x.jpg);
}
.content__item:nth-child(9) .content__item__img {
    background-image: url(../assets/img/effect_bg12@2x.jpg);
}
.content__item__desc {
    font-size: 4vw;
    line-height: 1.4;
    margin-top: -4vw;
    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-color: rgba(0,0,0,0.4);
    color: #fff;
    padding: 20px;
    border-radius: 10px;
}
#parallax__info li,
.scroll {
    line-height: 1.4;
}
@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;
    }
}

.split span {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.6s cubic-bezier(0.75,-0.32, 0.07, 1.29);
    display: inline-block;
    min-width: 1vw;
}
.split span.show {
    opacity: 1;
    transform: translateY(0);
}

/* option */
/* .split span {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.6s cubic-bezier(0.75,-0.32, 0.07, 1.29);
    display: inline-block;
    min-width: 1vw;
}
.split.show span {
    opacity: 1;
    transform: translateY(0);
}
.split span:nth-child(1)  {transition-delay: 100ms;}
.split span:nth-child(2)  {transition-delay: 150ms;}
.split span:nth-child(3)  {transition-delay: 200ms;}
.split span:nth-child(4)  {transition-delay: 150ms;}
.split span:nth-child(5)  {transition-delay: 200ms;}
.split span:nth-child(6)  {transition-delay: 250ms;}
.split span:nth-child(7)  {transition-delay: 300ms;}
.split span:nth-child(8)  {transition-delay: 350ms;}
.split span:nth-child(9)  {transition-delay: 400ms;}
.split span:nth-child(10) {transition-delay: 450ms;}
.split span:nth-child(11) {transition-delay: 500ms;}
.split span:nth-child(12) {transition-delay: 550ms;}
.split span:nth-child(13) {transition-delay: 600ms;}
.split span:nth-child(14) {transition-delay: 650ms;}
.split span:nth-child(15) {transition-delay: 700ms;}
.split span:nth-child(16) {transition-delay: 750ms;}
.split span:nth-child(17) {transition-delay: 800ms;}
.split span:nth-child(18) {transition-delay: 850ms;}
.split span:nth-child(19) {transition-delay: 900ms;}
.split span:nth-child(20) {transition-delay: 950ms;}
.split span:nth-child(21) {transition-delay: 100ms;}
.split span:nth-child(22) {transition-delay: 1050ms;}
.split span:nth-child(23) {transition-delay: 1100ms;}
.split span:nth-child(24) {transition-delay: 1150ms;}
.split span:nth-child(25) {transition-delay: 1200ms;}
.split span:nth-child(26) {transition-delay: 1250ms;}
.split span:nth-child(27) {transition-delay: 1300ms;}
.split span:nth-child(28) {transition-delay: 1350ms;}
.split span:nth-child(29) {transition-delay: 1400ms;}
.split span:nth-child(30) {transition-delay: 1450ms;}
.split span:nth-child(31) {transition-delay: 1500ms;}
.split span:nth-child(32) {transition-delay: 1550ms;}
.split span:nth-child(33) {transition-delay: 1600ms;} */

JS 작성

일단 글씨를 변수로 선언해주고 split과 join을 이용해 글씨를 하나하나 쪼개서 span태그로 묶어줍니다. 단 이렇게 만들시 웹 접근성이 좋지 않아지므로 aria-hidden을 줍니다. 평소에 글씨들을 숨겨놓고, 위치값에 따라 스타일을 넣어서 순차적으로 딜레이를 걸어 글씨들이 나타나도록 만들어줍니다. 스크롤은 재귀함수를 이용해줍니다. 세부 설명들은 주석을 확인하시면 됩니다.^^

//글씨 하나씩 쪼개기
    let text = document.querySelectorAll(".content__item__desc");
    // let splitText = text.innerText;
    // let splitWrap = splitText.split('').join('</span><span>')
    // text.innerHTML = splitWrap = "<span>" + splitWrap + "</span>"

    // 글씨 쪼개기(다중이) 

    document.querySelectorAll(".split").forEach(text => {
        let splitText = text.innerText;
        let splitWrap = splitText.split('').join('</span><span aria-hidden = "true">');    //접근성 때문에 aria-hidden을 준다
        splitWrap = "<span aria-hidden = 'true'>" + splitWrap + "</span>";
        text.innerHTML = splitWrap;
        text.setAttribute("aria-label", splitText);           // splitText에 aria-label로 값을 넣는다.
    });

    function scroll(){
        let ScrollTop = window.scrollY;
        document.querySelector("#parallax__info .scroll").innerText = Math.round(ScrollTop);

        // CSS에 클래스 추가(노가다)
        // document.querySelectorAll(".content__item").forEach(item => {
        //     if(ScrollTop >= item.offsetTop) {
        //         item.querySelector(".split").classList.add("show");
        //     }
        // })

        document.querySelectorAll(".content__item").forEach(item => {
            if(ScrollTop >= item.offsetTop){
                item.querySelectorAll(".split span").forEach((span, index) => {
                    span.classList.add("show");

                    span.style.transitionDelay = index + "00ms";
                });
            }
        })

        requestAnimationFrame(scroll);

        // 첫 번째 span --> 0.01s
        // 두 번째 span --> 0.02s
        // 세 번째 span --> 0.03s
    }
    scroll();


    // text.forEach((el) => {
    //     let splitText = el.innerText;
    //     let splitWrap = splitText.split('').join('</span><span>');
    //     el.innerHTML = splitWrap = "<span>" + splitWrap + "</span>";
    // });