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CSS Animation – Dark Light Menu

CODEPEN:


HTML CODE:

<header class="cd-header">
        <div class="header-wrapper">
            <div class="logo-wrap">
                <a href="#" class="hover-target"><span>true</span>codes</a>
            </div>
            <div class="nav-but-wrap">
                <div class="menu-icon hover-target">
                    <span class="menu-icon__line menu-icon__line-left"></span>
                    <span class="menu-icon__line"></span>
                    <span class="menu-icon__line menu-icon__line-right"></span>
                </div>
            </div>
        </div>
    </header>

    <div class="nav">
        <div class="nav__content">
            <ul class="nav__list">
                <li class="nav__list-item active-nav"><a href="#" class="hover-target">home</a></li>
                <li class="nav__list-item"><a href="#" class="hover-target">studio</a></li>
                <li class="nav__list-item"><a href="#" class="hover-target">news</a></li>
                <li class="nav__list-item"><a href="#" class="hover-target">contact</a></li>
            </ul>
        </div>
    </div>

    <div class="section full-height over-hide">
        <div class="switch-wrap">
            <h1>overlay menu</h1>
            <div id="switch" class="hover-target">
                <div id="circle"></div>
            </div>
            <p><span>dark</span> - <span>light</span></p>
        </div>
    </div>

    <div class='cursor' id="cursor"></div>
    <div class='cursor2' id="cursor2"></div>
    <div class='cursor3' id="cursor3"></div>

CSS CODE:

@import url('https://fonts.googleapis.com/css?family=Montserrat:100,100i,200,200i,300,300i,400,400i,500,500i,600,600i,700,700i,800,800i,900,900i');

body {
    font-family: 'Montserrat', sans-serif;
    font-weight: 300;
    font-size: 15px;
    line-height: 1.7;
    color: #c4c3ca;
    background-color: #1f2029;
    overflow-x: hidden;
    -webkit-transition: all 300ms linear;
    transition: all 300ms linear;
}

a {
    cursor: pointer;
}

    a:hover {
        text-decoration: none;
    }

/* #Cursor
================================================== */

.cursor,
.cursor2,
.cursor3 {
    position: fixed;
    border-radius: 50%;
    transform: translateX(-50%) translateY(-50%);
    pointer-events: none;
    left: -100px;
    top: 50%;
    mix-blend-mode: difference;
    -webkit-transition: all 300ms linear;
    transition: all 300ms linear;
}

.cursor {
    background-color: #fff;
    height: 0;
    width: 0;
    z-index: 99999;
}

.cursor2, .cursor3 {
    height: 36px;
    width: 36px;
    z-index: 99998;
    -webkit-transition: all 0.3s ease-out;
    transition: all 0.3s ease-out
}

    .cursor2.hover,
    .cursor3.hover {
        -webkit-transform: scale(2) translateX(-25%) translateY(-25%);
        transform: scale(2) translateX(-25%) translateY(-25%);
        border: none
    }

.cursor2 {
    border: 2px solid #fff;
    box-shadow: 0 0 22px rgba(255, 255, 255, 0.6);
}

    .cursor2.hover {
        background: rgba(255,255,255,1);
        box-shadow: 0 0 12px rgba(255, 255, 255, 0.2);
    }

@media screen and (max-width: 1200px) {
    .cursor, .cursor2, .cursor3 {
        display: none
    }
}

/* #Primary style
================================================== */

.section {
    position: relative;
    width: 100%;
    display: block;
}

.over-hide {
    overflow: hidden;
}

.full-height {
    height: 100vh;
}

/* #Navigation
================================================== */

.cd-header {
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 100;
}

.header-wrapper {
    position: relative;
    width: calc(100% - 100px);
    margin-left: 50px;
}

.logo-wrap {
    position: absolute;
    display: block;
    left: 0;
    top: 40px;
    cursor: pointer;
}

    .logo-wrap a {
        cursor: pointer;
        font-family: 'Montserrat', sans-serif;
        font-weight: 900;
        font-size: 20px;
        line-height: 20px;
        text-transform: uppercase;
        letter-spacing: 2px;
        color: #fff;
        transition: all 0.3s ease-out;
    }

        .logo-wrap a span {
            color: #8167a9;
        }

        .logo-wrap a:hover {
            opacity: 0.9;
        }

.nav-but-wrap {
    position: relative;
    display: inline-block;
    float: right;
    padding-left: 15px;
    padding-top: 15px;
    margin-top: 26px;
    transition: all 0.3s ease-out;
}

.menu-icon {
    height: 30px;
    width: 30px;
    position: relative;
    z-index: 2;
    cursor: pointer;
    display: block;
}

.menu-icon__line {
    height: 2px;
    width: 30px;
    display: block;
    background-color: #fff;
    margin-bottom: 7px;
    cursor: pointer;
    -webkit-transition: background-color .5s ease, -webkit-transform .2s ease;
    transition: background-color .5s ease, -webkit-transform .2s ease;
    transition: transform .2s ease, background-color .5s ease;
    transition: transform .2s ease, background-color .5s ease, -webkit-transform .2s ease;
}

.menu-icon__line-left {
    width: 16.5px;
    -webkit-transition: all 200ms linear;
    transition: all 200ms linear;
}

.menu-icon__line-right {
    width: 16.5px;
    float: right;
    -webkit-transition: all 200ms linear;
    -moz-transition: all 200ms linear;
    -o-transition: all 200ms linear;
    -ms-transition: all 200ms linear;
    transition: all 200ms linear;
}

.menu-icon:hover .menu-icon__line-left,
.menu-icon:hover .menu-icon__line-right {
    width: 30px;
}

.nav {
    position: fixed;
    z-index: 98;
}

    .nav:before, .nav:after {
        content: "";
        position: fixed;
        width: 100vw;
        height: 100vh;
        background: rgba(20, 21, 26,0.6);
        border-bottom-left-radius: 200%;
        z-index: -1;
        -webkit-transition: -webkit-transform cubic-bezier(0.77, 0, 0.175, 1) 0.6s, border-radius linear 0.8s;
        transition: -webkit-transform cubic-bezier(0.77, 0, 0.175, 1) 0.6s, border-radius linear 0.8s;
        transition: transform cubic-bezier(0.77, 0, 0.175, 1) 0.6s, border-radius linear 0.8s;
        transition: transform cubic-bezier(0.77, 0, 0.175, 1) 0.6s, -webkit-transform cubic-bezier(0.77, 0, 0.175, 1) 0.6s, border-radius linear 0.8s;
        -webkit-transform: translateX(100%) translateY(-100%);
        transform: translateX(100%) translateY(-100%);
    }

    .nav:after {
        background: rgba(9,9,12,1);
        -webkit-transition-delay: 0s;
        transition-delay: 0s;
    }

    .nav:before {
        -webkit-transition-delay: .2s;
        transition-delay: .2s;
    }

.nav__content {
    position: fixed;
    visibility: hidden;
    top: 50%;
    margin-top: 20px;
    -webkit-transform: translate(0%, -50%);
    transform: translate(0%, -50%);
    width: 100%;
    text-align: center;
}

.nav__list {
    position: relative;
    padding: 0;
    margin: 0;
    z-index: 2;
}

.nav__list-item {
    position: relative;
    display: block;
    -webkit-transition-delay: 0.8s;
    transition-delay: 0.8s;
    opacity: 0;
    text-align: center;
    color: #fff;
    overflow: hidden;
    font-family: 'Montserrat', sans-serif;
    font-size: 8vh;
    font-weight: 900;
    line-height: 1.15;
    letter-spacing: 3px;
    -webkit-transform: translate(100px, 0%);
    transform: translate(100px, 0%);
    -webkit-transition: opacity .2s ease, -webkit-transform .3s ease;
    transition: opacity .2s ease, -webkit-transform .3s ease;
    transition: opacity .2s ease, transform .3s ease;
    transition: opacity .2s ease, transform .3s ease, -webkit-transform .3s ease;
    margin-top: 0;
    margin-bottom: 0;
}

    .nav__list-item a {
        position: relative;
        text-decoration: none;
        color: rgba(255,255,255,0.6);
        overflow: hidden;
        cursor: pointer;
        padding-left: 5px;
        padding-right: 5px;
        font-weight: 900;
        z-index: 2;
        display: inline-block;
        text-transform: uppercase;
        -webkit-transition: all 200ms linear;
        transition: all 200ms linear;
    }

        .nav__list-item a:after {
            position: absolute;
            content: '';
            top: 50%;
            margin-top: -2px;
            left: 50%;
            width: 0;
            height: 0;
            opacity: 0;
            background-color: #8167a9;
            z-index: 1;
            -webkit-transition: all 200ms linear;
            transition: all 200ms linear;
        }

        .nav__list-item a:hover:after {
            height: 4px;
            opacity: 1;
            left: 0;
            width: 100%;
        }

        .nav__list-item a:hover {
            color: rgba(255,255,255,1);
        }

    .nav__list-item.active-nav a {
        color: rgba(255,255,255,1);
    }

        .nav__list-item.active-nav a:after {
            height: 4px;
            opacity: 1;
            left: 0;
            width: 100%;
        }

body.nav-active .nav__content {
    visibility: visible;
}

body.nav-active .menu-icon__line {
    background-color: #fff;
    -webkit-transform: translate(0px, 0px) rotate(-45deg);
    transform: translate(0px, 0px) rotate(-45deg);
}

body.nav-active .menu-icon__line-left {
    width: 15px;
    -webkit-transform: translate(2px, 4px) rotate(45deg);
    transform: translate(2px, 4px) rotate(45deg);
}

body.nav-active .menu-icon__line-right {
    width: 15px;
    float: right;
    -webkit-transform: translate(-3px, -3.5px) rotate(45deg);
    transform: translate(-3px, -3.5px) rotate(45deg);
}

body.nav-active .menu-icon:hover .menu-icon__line-left,
body.nav-active .menu-icon:hover .menu-icon__line-right {
    width: 15px;
}

body.nav-active .nav {
    visibility: visible;
}

    body.nav-active .nav:before, body.nav-active .nav:after {
        -webkit-transform: translateX(0%) translateY(0%);
        transform: translateX(0%) translateY(0%);
        border-radius: 0;
    }

    body.nav-active .nav:after {
        -webkit-transition-delay: .1s;
        transition-delay: .1s;
    }

    body.nav-active .nav:before {
        -webkit-transition-delay: 0s;
        transition-delay: 0s;
    }

body.nav-active .nav__list-item {
    opacity: 1;
    -webkit-transform: translateX(0%);
    transform: translateX(0%);
    -webkit-transition: opacity .3s ease, color .3s ease, -webkit-transform .3s ease;
    transition: opacity .3s ease, color .3s ease, -webkit-transform .3s ease;
    transition: opacity .3s ease, transform .3s ease, color .3s ease;
    transition: opacity .3s ease, transform .3s ease, color .3s ease, -webkit-transform .3s ease;
}

    body.nav-active .nav__list-item:nth-child(0) {
        -webkit-transition-delay: 0.7s;
        transition-delay: 0.7s;
    }

    body.nav-active .nav__list-item:nth-child(1) {
        -webkit-transition-delay: 0.8s;
        transition-delay: 0.8s;
    }

    body.nav-active .nav__list-item:nth-child(2) {
        -webkit-transition-delay: 0.9s;
        transition-delay: 0.9s;
    }

    body.nav-active .nav__list-item:nth-child(3) {
        -webkit-transition-delay: 1s;
        transition-delay: 1s;
    }

    body.nav-active .nav__list-item:nth-child(4) {
        -webkit-transition-delay: 1.1s;
        transition-delay: 1.1s;
    }

    body.nav-active .nav__list-item:nth-child(5) {
        -webkit-transition-delay: 1.2s;
        transition-delay: 1.2s;
    }

    body.nav-active .nav__list-item:nth-child(6) {
        -webkit-transition-delay: 1.3s;
        transition-delay: 1.3s;
    }

    body.nav-active .nav__list-item:nth-child(7) {
        -webkit-transition-delay: 1.4s;
        transition-delay: 1.4s;
    }

    body.nav-active .nav__list-item:nth-child(8) {
        -webkit-transition-delay: 1.5s;
        transition-delay: 1.5s;
    }

    body.nav-active .nav__list-item:nth-child(9) {
        -webkit-transition-delay: 1.6s;
        transition-delay: 1.6s;
    }

    body.nav-active .nav__list-item:nth-child(10) {
        -webkit-transition-delay: 1.7s;
        transition-delay: 1.7s;
    }

.switch-wrap {
    position: absolute;
    top: 50%;
    left: 0;
    z-index: 10;
    transform: translateY(-50%);
    width: 100%;
    -webkit-transition: all 500ms linear;
    transition: all 500ms linear;
    margin: 0 auto;
    text-align: center;
}

    .switch-wrap h1 {
        font-weight: 900;
        font-size: 46px;
        line-height: 1;
        color: #fff;
        text-align: center;
        text-transform: uppercase;
        margin-bottom: 40px;
        -webkit-transition: all 300ms linear;
        transition: all 300ms linear;
    }

@media screen and (max-width: 580px) {
    .switch-wrap h1 {
        font-size: 32px;
    }
}

.switch-wrap p {
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 1px;
    line-height: 1;
    color: #8167a9;
    text-align: center;
    margin-top: 15px;
}

    .switch-wrap p span {
        position: relative;
    }

        .switch-wrap p span:before {
            position: absolute;
            content: '';
            width: 100%;
            height: 2px;
            background-color: #fff;
            left: 0;
            bottom: -4px;
            -webkit-transition: all 300ms linear;
            transition: all 300ms linear;
        }

        .switch-wrap p span:nth-child(2):before {
            opacity: 0;
        }

#switch,
#circle {
    cursor: pointer;
    -webkit-transition: all 300ms linear;
    transition: all 300ms linear;
}

#switch {
    width: 60px;
    height: 8px;
    margin: 0 auto;
    text-align: center;
    border: 2px solid #000;
    border-radius: 27px;
    background: #8167a9;
    position: relative;
    display: inline-block;
}

#circle {
    position: absolute;
    top: -11px;
    left: -13px;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    box-shadow: 0 4px 4px rgba(26,53,71,0.25), 0 0 0 1px rgba(26,53,71,0.07);
    background: #fff;
}

.switched {
    border-color: #8167a9 !important;
    background: #000 !important;
}

    .switched #circle {
        left: 43px;
        background: #000;
    }

/* #Light
================================================== */

body.light {
    background-color: #fff;
}

    body.light .cursor,
    body.light .cursor2,
    body.light .cursor3 {
        mix-blend-mode: normal;
    }

    body.light .cursor2 {
        border: 2px solid #1f2029;
        box-shadow: 0 0 4px rgba(0, 0, 0, 0.1);
    }

        body.light .cursor2.hover {
            background: rgba(0,0,0,0.06);
            box-shadow: 0 0 2px rgba(0, 0, 0, 0.1);
            border-color: transparent;
        }

    body.light .logo-wrap a {
        color: #1f2029;
    }

    body.light .menu-icon__line {
        background-color: #1f2029;
    }

    body.light .nav:before {
        background: rgba(235, 235, 235,0.6);
    }

    body.light .nav:after {
        background: rgba(250,250,250,1);
    }

    body.light .nav__list-item a {
        color: rgba(0,0,0,0.6);
    }

        body.light .nav__list-item a:hover {
            color: #1f2029;
        }

    body.light .nav__list-item.active-nav a {
        color: #1f2029;
    }

    body.light .switch-wrap h1 {
        color: #000;
    }

    body.light .switch-wrap p span:nth-child(2):before {
        opacity: 1;
        background-color: #000;
    }

    body.light .switch-wrap p span:nth-child(1):before {
        opacity: 0;
    }

/* #Link to page
================================================== */

.link-to-portfolio {
    position: fixed;
    bottom: 40px;
    right: 50px;
    z-index: 200;
    cursor: pointer;
    width: 40px;
    height: 40px;
    text-align: center;
    border-radius: 3px;
    background-position: center center;
    background-size: cover;
    background-image: url('https://ivang-design.com/ig-logo.jpg');
    box-shadow: 0 0 0 2px rgba(255,255,255,.1);
    transition: opacity .2s, border-radius .2s, box-shadow .2s;
    transition-timing-function: ease-out;
}

    .link-to-portfolio:hover {
        opacity: 0.8;
        border-radius: 50%;
        box-shadow: 0 0 0 20px rgba(255,255,255,.1);
    }

JavaScript CODE

<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
    <script>

        (function ($) {
            "use strict";

            //Page cursors

            document.getElementsByTagName("body")[0].addEventListener("mousemove", function (n) {
                t.style.left = n.clientX + "px",
                t.style.top = n.clientY + "px",
                e.style.left = n.clientX + "px",
                e.style.top = n.clientY + "px",
                i.style.left = n.clientX + "px",
                i.style.top = n.clientY + "px"
            });
            var t = document.getElementById("cursor"),
                e = document.getElementById("cursor2"),
                i = document.getElementById("cursor3");
            function n(t) {
                e.classList.add("hover"), i.classList.add("hover")
            }
            function s(t) {
                e.classList.remove("hover"), i.classList.remove("hover")
            }
            s();
            for (var r = document.querySelectorAll(".hover-target"), a = r.length - 1; a >= 0; a--) {
                o(r[a])
            }
            function o(t) {
                t.addEventListener("mouseover", n), t.addEventListener("mouseout", s)
            }

            //Navigation

            var app = function () {
                var body = undefined;
                var menu = undefined;
                var menuItems = undefined;
                var init = function init() {
                    body = document.querySelector('body');
                    menu = document.querySelector('.menu-icon');
                    menuItems = document.querySelectorAll('.nav__list-item');
                    applyListeners();
                };
                var applyListeners = function applyListeners() {
                    menu.addEventListener('click', function () {
                        return toggleClass(body, 'nav-active');
                    });
                };
                var toggleClass = function toggleClass(element, stringClass) {
                    if (element.classList.contains(stringClass)) element.classList.remove(stringClass); else element.classList.add(stringClass);
                };
                init();
            }();


            //Switch light/dark

            $("#switch").on('click', function () {
                if ($("body").hasClass("light")) {
                    $("body").removeClass("light");
                    $("#switch").removeClass("switched");
                }
                else {
                    $("body").addClass("light");
                    $("#switch").addClass("switched");
                }
            });

        })(jQuery);

    </script>
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