cssOMS/nav.scss

@import "mixin", "color";

#nav-side {
    width: 175px;
    position: fixed;
    top: 75px;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 0;
    overflow-y: auto;
    font-size: 0.8em;

    background: #2F2F2F;

    input {
        display: none;

        &:checked + ul {
            .max {
                display: inherit;
            }

            .min {
                display: none;
            }

            > li:nth-child(n+2) {
                display: inherit;
            }
        }
    }

    input + ul {
        .max {
            display: none;
        }

        .min {
            display: inherit;
        }

        > li:nth-child(n+2) {
            display: none;
        }
    }

    > li {
        li {
            border-top: 1px solid #3f3f3f;
            border-bottom: 1px solid #1a1a1a;
            color: #fff;

            &:first-child {
                padding: 5px 0 5px 5px;
            }

            a {
                display: block;
                padding: 5px 0 5px 5px;

                &:hover {
                    background: #3F3F3F;
                }
            }
        }
    }

    li:last-child li:last-child {
        border-bottom: none;
    }

    .max, .min {
        float: right;
    }

    i {
        margin-right: 5px;
    }
}

.nav-trigger {
    position: absolute;
    clip: rect(0, 0, 0, 0);
}

label[for="nav-trigger"] {
    font-size: 2.0em;
    height: 30px;
    width: 30px;
    cursor: pointer;
}

.nav-trigger:checked ~ main {
    width: calc(100% - 175px);
    left: 175px;
    box-shadow: -3px 3px 5px 0 rgba(0, 0, 0, 0.5);
}

.nav-top {
    margin: 5px 0 0 5px;
    display: block;
    background: #ffffff;
    border: 1px solid $content-border-color;

    @include box-shadow-top(#ffffff);

    > li {
        @include box-shadow-top(#ffffff);
        text-shadow: 1px 1px 1px #ffffff;

        &:first-child {
            @include box-shadow-out(#ffffff);
        }
    }
}

.nav-top li {
    background: #fff;
    display: inline-block;
    margin-right: -4px;
    position: relative;
    cursor: pointer;
}

.nav-top > li > a {
    display: inline-block;
    padding: 10px 10px;
}

.nav-top li:hover {
    background: #555;
    color: #fff;
    text-shadow: 0 -1px 0 #000;
}

.nav-top li > ul {
    padding: 0;
    position: absolute;
    top: 36px;
    left: 0;
    width: 150px;
    -webkit-box-shadow: none;
    -moz-box-shadow: none;
    box-shadow: none;
    display: none;
    opacity: 0;
    visibility: hidden;
}

.nav-top li > ul li {
    background: #555;
    display: block;
    color: #fff;
    text-shadow: 0 -1px 0 #000;
}

.nav-top li > ul li:hover { background: #666; }
.nav-top li:hover > ul {
    display: block;
    opacity: 1;
    visibility: visible;
}

@media screen and (max-width: 600px) {
    .nav-trigger:checked ~ main {
        width: 100%;
        left: 0;
    }

    .nav-trigger:not(:checked) ~ main {
        width: 0;
        padding-right: 0;
    }

    #nav-side {
        width: 100%;
    }
}