docs/_sass/docs.scss

// Licensed to the Apache Software Foundation (ASF) under one or more
// contributor license agreements.  See the NOTICE file distributed with
// this work for additional information regarding copyright ownership.
// The ASF licenses this file to You under the Apache License, Version 2.0
// (the "License"); you may not use this file except in compliance with
// the License.  You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
section.page-docs {
    display: grid;
    transition: grid-template-columns 0.15s;
    grid-template-columns: auto 1fr auto;
    grid-template-rows: 100%;
    grid-template-areas: 'left-nav content right-nav';
    line-height: 20px;
    max-width: 1440px;
    margin: auto;
    width: 100%;

    &>article {
        // box-shadow: -1px 13px 20px 0 #696c70;
        border-left: 1px solid #eeeeee;
        background-color: #ffffff;
        padding: 0 50px 30px;
        grid-area: content;
        overflow: hidden;
        font-family: sans-serif;
        font-size: 16px;
        color: #545454;
        line-height: 1.6em;

        h1, h2, h3:not(.discrete), h4, h5, strong, th {
            font-family: 'Open Sans';
        }

        li {
            margin-bottom: 0.5em;

            > p {
                margin-top: 0;
                margin-bottom: 0;
            }
        }

        @media (max-width: 800px) {
            padding-left: 15px;
            padding-right: 15px
        }
    }

    .edit-link {
        position:relative;
        top: 10px;
        right:10px;
        float: right;
        padding-top: calc(var(--header-height) + var(--padding-top));
        margin-top: calc((-1 * var(--header-height)));
    }

    h1, h2, h3:not(.discrete), h4, h5 {
        margin-bottom: 0;

        &[id] {
            margin-top:  var(--margin-top);
            margin-bottom: calc(var(--margin-top) * 0.5);
            // padding-top: calc(var(--header-height) + var(--padding-top));
            z-index: -1;
        }
    }

    .toc > ul {
        margin: 0;
    }


    .content > .pygments.highlight {
        margin-top: 0px;
    }

    .title {
        font-style: italic;
    }

    .checkmark:before {
        content: '\f14a';
        visibility: visible;
        font-family: FontAwesome;
        color: #00a100;
    }
    .checkmark {
        visibility: hidden;
    }

    .stretch {width: 100%;}
    h1[id] {
        --margin-top: 1em;
    }
    h2[id] {
        --margin-top: 1.2em;
    }
    .toc > h2 {
        --margin-top: 1em;
    }

    h3[id] {
        --margin-top: 1.2em;
    }
    h4[id] {
        --margin-top: 0.5em;
    }
    h5[id] {
        --margin-top: 1.67em;
    }
    .imageblock .content, .image {
        text-align: center;
        display: block;
    }
    .imageblock, .image {
        img:not([width]):not([height]) {
            width: auto;
            height: auto;
            max-width: 100%;
            max-height: 450px;
        }
    }
    strong {
        color: #757575;
    }

    th.valign-top,td.valign-top {
        vertical-align:top;
    }

    table {
        margin: 16px 0;
    }

    table tr td {
        hyphens: auto;
    }

    table thead,table tfoot {
        background:#f7f8f7;
        color: #757575;
    }
    table tr.even,table tr.alt{background:#f8f8f7}
    table.stripes-all tr,table.stripes-odd tr:nth-of-type(odd),table.stripes-even tr:nth-of-type(even),table.stripes-hover tr:hover{background:#f8f8f7}

}
.copyright {
    margin-top: 3em;
    padding-top: 1em;
    border-top: 1px solid #f0f0f0;
    font-size: 0.9em;
    line-height: 1.8em;
    color: #757575;
}

body.hide-left-nav {
    .left-nav {
        display: none;
    }
}

.left-nav {
    top: 0;
    bottom: 0;
    position: -webkit-sticky;
    position: sticky;
}
.left-nav {
    max-height: calc(100vh );
    grid-area: left-nav;
}
.right-nav {
    grid-area: right-nav;
}
.left-nav__overlay {
    display: none;
    background: rgba(0, 0, 0, 0.50);
    z-index: 1;
    position: fixed;
    top: var(--header-height);
    bottom: 0;
    left: 0;
    right: 0;
}
@media (max-width: 990px) {
    body:not(.hide-left-nav) {
        .left-nav__overlay {
            display: block;
        }
    }
    nav.left-nav {
        background: #fafafa;
        grid-area: left-nav;
        box-shadow: 0 4px 4px 0 rgba(0, 0, 0, 0.24), 0 0 4px 0 rgba(0, 0, 0, 0.12);
        min-height: calc(100vh - var(--header-height));
        max-height: calc(100vh - var(--header-height));
        position: fixed;
        bottom: 0;
        top: var(--header-height);
        z-index: 2;
    }
    section.page-docs > article {
        grid-column-start: left-nav;
        grid-column-end: content;
        grid-row: content;
    }
}
@media (max-width: 800px) {
    nav.right-nav {
        display: none;
    }
}

:target:before {
    content: "";
    display: block;
    margin-top: calc(var(--header-height) * -1);
    height: var(--header-height);
    width: 1px;
}
@media (min-width: 600px) and  (max-width: 900px) {
    :target:before {
        content: "";
        display: block;
        width: 1px;
        margin-top: -150px;
        height: 150px;
    }
}