parallax 03

페럴랙스 이펙트 03

이번 시간에는 페럴랙스 형태를 가진 이펙트를 코딩해봤습니다.

HTML

사이트를 코딩하는 데에 필요한 HTML의 구조를 잡아줍니다.
각 태그에 클래스 이름을 설정하여 각 구역을 잡아줍니다.

코드보기

    &<header id="header">
        <h1>Javascript Mouse Effect03</h1>
        <p>패럴렉스 이펙트 - 숨김 메뉴</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">6</a></li>
            <li><a href="parallaxEffect07.html">7</a></li>
        </ul>
    </header>
    <!-- //header -->

    <nav id="parallax__nav" class="show">
        <ul>
            <li class="active"><a href="#section1">메뉴1</a></li>
            <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>
    <!-- //nav -->

    <div id="parallax__top">
        Top
    </div>

    <main id="parallax__cont">
        <div id="contents">
            <!-- section1 -->
            <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">니 인생은 너가 바꾸는거다.</p>
            </section>

            <!-- section2 -->
            <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">남 탓 하기 전에 너 자신을 봐라.</p>
            </section>

            <!-- section3 -->
            <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">알면서도 안하고 가만히 있으면 거지가 되면 된다.</p>
            </section>

            <!-- section4 -->
            <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">남들은 너한테 큰 관심이 없다.</p>
            </section>

            <!-- section5 -->
            <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">너 혼자 알아서 해라.</p>
            </section>

            <!-- section6 -->
            <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">돈이 세상에 다는 아니지만 세상은 돈으로 굴러간다.</p>
            </section>

            <!-- section7 -->
            <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">사회는 널 기다려주지 않는다.</p>
            </section>

            <!-- section8 -->
            <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">힘 없는 정의는 무능이다.</p>
            </section>

            <!-- section9 -->
            <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">객관적으로 너 자신을 봐라</p>
            </section>
        </div>
        <section id="parallaxType">
        </section>
    </main>
    <!-- //main -->

CSS

사이트를 코딩하는 데에 필요한 css의 구조를 잡아줍니다.
각 이미지를 지정하기 위해 nth-child를 사용하여 각각의 이미지를 삽입해줍니다.

코드 보기

    /* parallax__nav */
    #parallax__nav {
        position: fixed;
        right: 20px;
        top: -200px;
        z-index: 2000;
        background-color: rgba(0, 0, 0, 0.4);
        padding: 20px 30px;
        border-radius: 50px;
        transition: top, .4s ease;
    }
    #parallax__nav.show {
        top: 20px;
    }
    #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: 14vw;
    }
    .content__item:nth-child(even) {
        margin-left: 0;
        text-align: right;
    }
    .content__item__num {
        font-size: 35vw;
        font-family: "Lato";
        font-weight: 100;
        position: absolute;
        left: -5vw;
        top: -10vw;
        opacity: 0.2;
        z-index: -2;
    }
    .content__item:nth-child(even) .content__item__num {
        left: auto;
        right: -5vw;
    }
    .content__item__title {
        font-weight: 500;
        text-transform: capitalize;
    }
    .content__item__imgWrap {
        width: 100%;
        padding-bottom: 56.25%;
        background-color: #fff;
        position: relative;
        overflow: hidden;
        z-index: -1;
    }
    .content__item__img {
        position: absolute;
        background: url(../assets/img/slide10.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/slide01.jpg);
    }
    .content__item:nth-child(2) .content__item__img {
        background-image: url(../assets/img/slide02.jpg);
    }
    .content__item:nth-child(3) .content__item__img {
        background-image: url(../assets/img/slide03.jpg);
    }
    .content__item:nth-child(4) .content__item__img {
        background-image: url(../assets/img/slide04.jpg);
    }
    .content__item:nth-child(5) .content__item__img {
        background-image: url(../assets/img/slide05.jpg);
    }
    .content__item:nth-child(6) .content__item__img {
        background-image: url(../assets/img/slide06.jpg);
    }
    .content__item:nth-child(7) .content__item__img {
        background-image: url(../assets/img/slide07.jpg);
    }
    .content__item:nth-child(8) .content__item__img {
        background-image: url(../assets/img/slide08.jpg);
    }
    .content__item:nth-child(9) .content__item__img {
        background-image: url(../assets/img/slide09.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, 0.6);
        color: #fff;
        padding: 20px;
        border-radius: 10px;
    }
    .parallax__info li, .scrollTop {
        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: 1.4;
        }
        #parallax__nav li.active a {
            border-radius: 10px;
        }
        #parallax__info {
            left: 10px;
            bottom: 10px;
        }
    }
    #parallax__top {
        position: fixed;
        left: 50%;
        bottom: -220px;
        z-index: 10000;
        transform: translateY(-50%);
        width: 40px;
        height: 40px;
        background: rgba(0,0,0,0.4);
        text-align: center;
        line-height: 40px;
        color: #fff;
        border-radius: 50%;
        padding: 0px;
        cursor: pointer;
        transition: all 0.3s;
    }
    #parallax__top.show {
        bottom: 5px;
    }
    #parallax__top:hover {
        background: #fff;
        color: #000;
    }

script

위 메뉴 네비는 if문을 사용해 scrollTop 값이 0보단 높을시에 메뉴가 나오게하며,
밑에 top버튼은 해당 scrollTop과 브라우저 높이가 문제 전체 높이보다 크면 드러나게 한다.

scrollTop은 개별적으로 사용하는 방법이 있지만, || 를 이용해 여러가지를 한번에 사용할 수도 있다.
scrollIntoView() : 스크롤 이동 및 설정하는 메서드
behavior: "smooth"는 이동시에 부드럽게 이동하도록 설정할 수 있다.

코드 보기

    window.addEventListener("scroll", () => {
        let scrollTop = window.pageYOffset || window.scrollY || document.documentElement.scrollTop;

        if(scrollTop > 0) {
            document.querySelector("#parallax__nav").classList.add("show");
        } else {
            document.querySelector("#parallax__nav").classList.remove("show");
        }

        if(scrollTop + window.innerHeight >= document.body.scrollHeight) {     // 문서 전체 높이 - 브라우저 높이
            document.querySelector("#parallax__top").classList.add("show");
        } else {
            document.querySelector("#parallax__top").classList.remove("show");
        }

        document.querySelector("#parallax__info span").innerText = Math.ceil(scrollTop);
    });

    document.querySelector("#parallax__top").addEventListener("click", () => {
        window.scrollTo({left: 0, top: 0, behavior: "smooth"})
    });

코드 원본 보기

결과물

원본 사이트 보기