styles.css

body {
    margin-top:0;
    margin-bottom:0;
    margin-left:auto;
    margin-right:auto;
    max-width: 50em;
    font-family: "Helvetica", "Arial", sans-serif;
    line-height: 1.5;
    padding: 4em 1em;
    color: #555;
}

h1, h2, h3, strong {
    color: #333;
}

h2 {
    margin-top: 1em;
    padding-top: 1em;
    border-bottom: 1px solid #bbb;
}

h3 {
    font-size: medium;
    margin-top: 16px;
    margin-bottom: 8px;
}

a {
    color: seagreen;
    background-color: #F8FFF8;
}

#header {
    height: 60px;
    background: #f9f7f7;
    border-bottom: 1px solid #e8e8e8;
    position: absolute;
    left: 0px;
    top: 0px;
    right: 0px;
    background-image: url('IconLarge.png');
    background-attachment: local;
    background-repeat: no-repeat;
    background-position: 15px 5px;
    background-origin: border-box;
    background-size: 45px 50px;
    -webkit-filter: drop-shadow(5px 5px 5px #ddd);
    filter: drop-shadow(5px 5px 5px #ddd);
}

#header h1 {
    margin-left: 75px;
    font-size: 20px;
    color: #808080;
    font-family: "Segoe UI","Helvetica Neue","Helvetica",Arial,sans-serif;
    font-weight: 500;
}

.accent {
    color: #377;
    background-color: #F0F8FF;
    font-weight: bold;
}

table {
    border-collapse: collapse;
    width: 100%;
}

.horizontalGridLines td {
    /*border-left-style: solid;*/
    /*border-top-style: solid;*/
    /*border-right-style: solid;*/
    border-bottom-style: solid;
    border-width: 1px;
    border-color: #e1e1e1;
}

td {
    padding: 8px;
}

.header {
    height: 60px;
    background: linear-gradient(to right, #9e7ad0, #91d0ee);
}

.menu {
    margin-left: 0px;
    margin-right: 24px;
    height: 60px;
    display: inline-block;
}

.headerLink:link, .headerLink:visited, .currentPage {
    display: inline-block;
    line-height: 60px;
    vertical-align: middle;
    padding: 0 30px;
    color: white;
    text-decoration: none;
    border-width: 1px;
}

.headerLink:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.currentPage {
    border-color: rgba(255, 255, 255, 0.4);
    border-style: solid;
    line-height: normal;
    padding: 4px;
    margin: 1px 25px 0px 25px;
}

.mainPageContent {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    margin: 0;
    align-items: center;
}

.mainContentCentered {
    max-width: 50em;
    line-height: 1.5;
    color: #555;
}

.mainContentLeft, #mainDocContent {
    margin: 0 auto 0 40px;
    max-width: 50em;
    line-height: 1.5;
    color: #555;
}

p {
    -webkit-margin-before: 8px;
    -webkit-margin-after: 8px;
    text-align: justify;
}

.bigButton {
    background: linear-gradient(to bottom, #72dc4d, #339b10);
    padding: 12px 20px;
    color: #e0ffd6;
    text-decoration: none;
    border-radius: 5px;
    border-width: 1px;
    border-color: #4e9236;
    border-style: solid;
    margin: 32px;
}

.buttonHost {
    text-align: center;
    margin: 62px auto;
}

#twoPanes {
    box-sizing: border-box;
    top: 60px;
    width: 100%;
    height: calc(100% - 60px);
    display: flex;
    position: fixed;
}

#leftPane {
    box-sizing: border-box;
    white-space: nowrap;
    overflow-y: auto;
    overflow-x: auto;
    padding: 12px 0px 12px 12px;
    width: calc(20% + 15px);
    background-color: #f6f6f6;
}

#rightPane {
    box-sizing: border-box;
    display: flex;
    overflow-y: auto;
    align-items: stretch;
    align-content: stretch;
    flex-direction: column;
    padding: 12px;
    width: calc(80% - 15px);
}

.gutter {
    background-color: #fcfcfc;
    cursor: col-resize;
}

.tocRoot {
    margin-left: 20px;
    margin-bottom: 60px;
}

.toc1:link, .toc1:visited, .toc2:link, .toc2:visited, .toc3:link, .toc3:visited {
    display: block;
    color: black;
    text-decoration: none;
    padding: 3px 10px;
    border-left-width: 4px;
    border-left-style: solid;
    border-left-color: transparent;
}

.toc2:link, .toc2:visited {
    margin-left: 32px;
}

.toc3:link, .toc3:visited {
    margin-left: 64px;
}

.selectedTocItem, .selectedTocItem:link, .selectedTocItem:visited {
    background-color: #c6f1ff;
    color: steelblue;
    border-left-width: 4px;
    border-left-color: lightskyblue;
    border-left-style: solid;
}

#editThis:link, #editThis:visited {
    display: inline-block;
    text-align: right;
    background-color: lightyellow;
    padding: 6px 12px;
    border-width: 1px;
    border-style: solid;
    border-color: antiquewhite;
    margin-left: auto;
    text-decoration: none;
    color: darkkhaki;
    margin-right: -32px;
    margin-top: -12px;
    position: absolute;
    right: 48px;
}

.checkmark {
    color: green;
    font-size: larger;
    font-weight: bolder;
}

.inlineCode {
    font-family: Consolas, Courier New, Courier, monospace;
    font-size: small;
    background-color: #f0f0f0;
    color: black;
}

.leftAlign {
    text-align: left;
}

.code {
    font-family: Consolas, Courier New, Courier, monospace;
    font-size: small;
    color: black;
    display: block;
    white-space: pre;
    background-color: #f5f5f5;
    padding: 8px;
    overflow-x: auto;
}

.note {
    background-color: lightyellow;
    padding: 8px;
    border-style: solid;
    border-width: 1px;
    border-color: #e6d084;
    -webkit-box-shadow: 5px 5px 15px -4px rgba(0,0,0,0.23);
    -moz-box-shadow: 5px 5px 15px -4px rgba(0,0,0,0.23);
    box-shadow: 5px 5px 15px -4px rgba(0,0,0,0.23);
    margin: 30px 0px;
    text-align: left;
}

.nuget-badge code {
    background-color:#202020;
    border:4px solid #c0c0c0;
    border-radius:5px;
    box-shadow:2px 2px 3px #6e6e6e;
    color:#e2e2e2;
    display:inline-block;
    font:1.25em consolas,'andale mono','lucida console',monospace;
    line-height:.9em;
    overflow:auto;
    padding:15px;
}

@media only screen and (min-width: 1300px) {
    .tocRoot {
        position: fixed;
        left: 0;
        top: 60px;
    }

    .tocRoot li {
        line-height: 1.7;
    }

    body {
        margin-left: 30%;
        margin-right: 0;
    }
}