/* Mixin */
/* reset */
* {
    padding: 0;
    margin: 0;
}

nav {
    background-color: #3e464f;
    height: 50px;
    padding: 0 16px;
    display: -ms-flexbox;
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    -webkit-align-items: center;
    align-items: center;
    /* fade in checked menu */
}

    nav .m-menu__checkbox {
        display: none;
    }

    nav label.m-menu__toggle {
        cursor: pointer;
    }

    nav .m-menu {
        position: absolute;
        top: 0;
        left: 0;
        max-width: 450px;
        width: calc(100vw - 30px);
        height: 100%;
        -moz-transform: translate3d(-450px, 0, 0);
        -o-transform: translate3d(-450px, 0, 0);
        -ms-transform: translate3d(-450px, 0, 0);
        -webkit-transform: translate3d(-450px, 0, 0);
        transform: translate3d(-450px, 0, 0);
        -moz-transition: transform 0.35s;
        -o-transition: transform 0.35s;
        -webkit-transition: transform 0.35s;
        transition: transform 0.35s;
        z-index: 1;
        overflow: hidden;
        background-color: #fff;
    }

    nav .m-menu__overlay {
        background-color: rgba(103, 103, 103, 0.5);
        position: absolute;
        top: 0;
        width: 100%;
        bottom: 0;
        z-index: 1;
        display: none;
    }

    nav .m-menu__header {
        list-style: none;
        padding: 0 16px;
        height: 50px;
        display: -ms-flexbox;
        display: -webkit-box;
        display: -webkit-flex;
        display: flex;
        -webkit-justify-content: space-around;
        justify-content: space-around;
        -ms-flex-pack: space-around;
        -webkit-align-items: center;
        align-items: center;
        border-bottom: 1px solid #e8e8e8;

    }

        nav .m-menu__header span {
            font-size: 1.2rem;
            font-weight: bold;
            text-align: center;
            width: 100%;
        }

    nav .m-menu .m-menu {
        -moz-transform: translate3d(480px, 0, 0);
        -o-transform: translate3d(480px, 0, 0);
        -ms-transform: translate3d(480px, 0, 0);
        -webkit-transform: translate3d(480px, 0, 0);
        transform: translate3d(480px, 0, 0);
    }

    nav .m-menu ul {
        height: 100%;
        overflow-y: auto;
        list-style: none
    }

        nav .m-menu ul li a, nav .m-menu ul li label {
            display: block;
            text-align: left;
            padding: 0 15px;
            line-height: 47px;
            text-decoration: none;
            color: #333;
            cursor: pointer;
            font-size: 1rem;
            border-bottom: 1px solid #e8e8e8;
            position: relative;
            list-style: none
        }

            nav .m-menu ul li label.a-label__chevron::after {
                content: "";
                position: absolute;
                display: inline-block;
                height: 10px;
                width: 10px;
                border-color: #333;
                border-style: solid;
                border-width: 1px 1px 0 0;
                -moz-transform: rotate(45deg);
                -o-transform: rotate(45deg);
                -ms-transform: rotate(45deg);
                -webkit-transform: rotate(45deg);
                transform: rotate(45deg);
                top: 50%;
                margin-top: -5px;
                right: 16px;
                list-style: none
            }

        nav .m-menu ul li .-invisible {
            border-bottom: 0;
        }

    nav .m-menu .m-menu label.m-menu__toggle {
        display: -ms-flexbox;
        display: -webkit-box;
        display: -webkit-flex;
        display: flex;
        border-bottom: 0;
        padding: 0;
        -webkit-box-sizing: content-box;
        -moz-box-sizing: content-box;
        box-sizing: content-box;
    }

    nav .m-menu__checkbox:checked ~ .m-menu__overlay {
        display: block;
    }

    nav .m-menu__checkbox:checked ~ .m-menu {
        -moz-transform: translate3d(0, 0, 0);
        -o-transform: translate3d(0, 0, 0);
        -ms-transform: translate3d(0, 0, 0);
        -webkit-transform: translate3d(0, 0, 0);
        transform: translate3d(0, 0, 0);
    }

.wrapper {
    width: 100%;
    height: 667px;
    background-color: #fff;
    position: relative;
}

body {
    background-color: #f1f1f1;
    padding: 0;
    margin: 0;
    font-family: sans-serif;
}