styles.css

body {
    color: #222;
    font-family: 'Source Sans Pro', Arial;
    line-height: 1.5;
    letter-spacing: 0.2px;
    word-spacing: 1px;
    background-image: linear-gradient(0deg,
            hsl(354deg 79% 63%) 0%,
            hsl(356deg 82% 68%) 15%,
            hsl(357deg 86% 73%) 20%,
            hsl(358deg 90% 78%) 24%,
            hsl(359deg 94% 82%) 28%,
            hsl(360deg 99% 86%) 32%,
            hsl(0deg 100% 89%) 38%,
            hsl(1deg 100% 93%) 45%,
            hsl(1deg 100% 96%) 57%,
            hsl(0deg 0% 100%) 89%);
}

.page-wrap {
    margin: 2em 2em;
    -webkit-font-smoothing: antialiased;
}

header {
    width: 100%;
}

#top {
    margin: 20px 0;
    font-size: 24px;
    text-align: center;
}

#top a {
    font-family: "Montserrat", sans-serif;
    color: #000;
    font-size: 38px;
    text-align: center;
    text-decoration: none;
}

nav {
    background: #FEFEFE;
    padding-bottom: 10px;
}

ul {
    margin: 15px auto;
    padding: 0 20px;
    text-align: center;
}

ul li {
    font-size: 24px;
    list-style: none;
    display: inline-block;
    margin-right: 20px;
}

.nav-link {
    padding: 5px 10px;
    text-decoration: none;
}

.nav-link.selected {
    background-color: #C3272B;
    color: #FEFEFE;
}

p, ol {
    margin: 1 1 1.2em 1;

}

a, a:active, a:hover, a:visited {
    color: #C3272B;
    -webkit-transition: all .2s ease-in-out;
    -moz-transition: all .2s ease-in-out;
    -o-transition: all .2s ease-in-out;
    transition: all .2s ease-in-out;
    line-height: initial;
}

span.more {
    text-decoration: underline;
    cursor: pointer;
}

span.more:hover {
    color: #C3272B;
}

#content {
    height: calc(100% - 200px);
    overflow-y: auto;
}

a.anchor {
    display: block;
    position: relative;
    top: -265px;
    visibility: hidden;
}

section {
    font-size: 22px;
    width: 70%;
    margin: 10px auto;
}

section h2 {
    font-size: 36px;
    font-weight: normal;
    margin: 0.2em 0 0.2em -1em;
}

section h3 {
    font-size: 24px;
    font-weight: normal;
}

section div {
    margin-bottom: 2em;
}

.expanded {
    height: 1350px;
}

img.icon {
    height: 2em;
    width: 1em;
}

section a[href*="top"] {
    line-height: 2em;
}

span.cross {
    text-decoration: line-through;
}

ol {
    margin-top: 0px;
}

/* ==========================================================================
   Helper classes
   ========================================================================== */

/*
 * Image replacement
 */

.ir {
    background-color: transparent;
    border: 0;
    overflow: hidden;
    /* IE 6/7 fallback */
    *text-indent: -9999px;
}

.ir:before {
    content: "";
    display: block;
    width: 0;
    height: 100%;
}

/*
 * Hide from both screenreaders and browsers: h5bp.com/u
 */

.hidden {
    display: none;
}

/*
 * Hide only visually, but have it available for screenreaders: h5bp.com/v
 */

.visuallyhidden {
    border: 0;
    clip: rect(0 0 0 0);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
}

/*
 * Extends the .visuallyhidden class to allow the element to be focusable
 * when navigated to via the keyboard: h5bp.com/p
 */

.visuallyhidden.focusable:active,
.visuallyhidden.focusable:focus {
    clip: auto;
    height: auto;
    margin: 0;
    overflow: visible;
    position: static;
    width: auto;
}

/*
 * Hide visually and from screenreaders, but maintain layout
 */

.invisible {
    visibility: hidden;
}

/*
 * Clearfix: contain floats
 *
 * For modern browsers
 * 1. The space content is one way to avoid an Opera bug when the
 *    `contenteditable` attribute is included anywhere else in the document.
 *    Otherwise it causes space to appear at the top and bottom of elements
 *    that receive the `clearfix` class.
 * 2. The use of `table` rather than `block` is only necessary if using
 *    `:before` to contain the top-margins of child elements.
 */

.clearfix:before,
.clearfix:after {
    content: " ";
    /* 1 */
    display: table;
    /* 2 */
}

.clearfix:after {
    clear: both;
}

/*
 * For IE 6/7 only
 * Include this rule to trigger hasLayout and contain floats.
 */

.clearfix {
    *zoom: 1;
}

/* ==========================================================================
   EXAMPLE Media Queries for Responsive Design.
   Theses examples override the primary ('mobile first') styles.
   Modify as content requires.
   ========================================================================== */

@media only screen and (min-width: 35em) {
    /* Style adjustments for viewports that meet the condition */
}

@media only screen and (-webkit-min-device-pixel-ratio: 1.5),
only screen and (min-resolution: 144dpi) {
    /* Style adjustments for high resolution devices */
}

/* ==========================================================================
   Print styles.
   Inlined to avoid required HTTP connection: h5bp.com/r
   ========================================================================== */

@media print {
    * {
        background: transparent !important;
        color: #000 !important;
        /* Black prints faster: h5bp.com/s */
        box-shadow: none !important;
        text-shadow: none !important;
    }

    a,
    a:visited {
        text-decoration: underline;
    }

    a[href]:after {
        content: " ("attr(href) ")";
    }

    abbr[title]:after {
        content: " ("attr(title) ")";
    }

    /*
     * Don't show links for images, or javascript/internal links
     */

    .ir a:after,
    a[href^="javascript:"]:after,
    a[href^="#"]:after {
        content: "";
    }

    pre,
    blockquote {
        border: 1px solid #999;
        page-break-inside: avoid;
    }

    thead {
        display: table-header-group;
        /* h5bp.com/t */
    }

    tr,
    img {
        page-break-inside: avoid;
    }

    img {
        max-width: 100% !important;
    }

    @page {
        margin: 0.5cm;
    }

    p,
    h2,
    h3 {
        orphans: 3;
        widows: 3;
    }

    h2,
    h3 {
        page-break-after: avoid;
    }
}

img {
    vertical-align: middle;
}

fieldset {
    border: 0;
    margin: 0;
    padding: 0;
}

textarea {
    resize: vertical;
}

.chromeframe {
    margin: 0.2em 0;
    background: #ccc;
    color: #000;
    padding: 0.2em 0;
}

.center {
    display: block;
    margin-left: auto;
    margin-right: auto;
    max-width: 100%;
    opacity: 0.8
}

h3 {
    line-height: 1.5em;
}