html, 
body {
    height: 100%;
    padding: 0;
    margin: 0;
}
.page {
    position: relative;
    display: table;
    table-layout: fixed;
    width: 100%;
    height: 100%;
    line-height: normal;
    text-align: center;
    font-family: Open Sans,  sans-serif;
    font-size: 1.1em;
    color: #000;
    background-color: #f0f0f0;
    background-size: cover;
    background-position: 50% 50%;
    background-repeat: no-repeat;
    background-attachment: fixed;
}
h1 {
    margin-bottom: 7rem;
}
h1, h2, h3, h4, h5 {
    line-height: 1.3;
    font-weight: normal;
}
.bg-position-top {
    background-position: 50% 0;
}
.bg-position-middle {
    background-position: 50% 50%}
.bg-position-bottom {
    background-position: 50% 100%}
.page:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    filter: alpha(opacity=40);
    -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=40)";
    opacity: 0.4;
}
img {
    max-width: 100%;
    width: auto\9;
    height: auto;
}
a, a:link {
    color: inherit;
    filter: alpha(opacity=85);
    -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=85)";
    opacity: 0.85;
}
a:hover, a:focus, a:active {
    filter: alpha(opacity=100);
    -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)";
    opacity: 1;
    -webkit-transition: all .3s ease-in-out;
    transition: all .3s ease-in-out;
}
ul, ol {
    display: inline-block;
    text-align: left;
    max-width: 50%}
.container {
    position: relative;
    display: table-cell;
    width: 100%;
    vertical-align: middle;
    padding: 1em 2em;
    z-index: 1;
}
.content {
    max-width: 900px;
    margin: 0 auto;
}
.social-links:empty {
    outline: 1px solid yellow;
}
.social-links {
    padding: 1em 0;
    vertical-align: middle;
}
.social-links a {
    padding: 0 0.3em;
    line-height: normal;
}
.hosting-info {
    position: absolute;
    display: block;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1em;
    font-size: 0.8em;
}
.hosting-info p {
    margin: 0;
    padding: 0;
    font-size: 12px;
}
.overlay-dark {
    background-color: #333;
}
.overlay-dark:before {
    background-color: #333;
}
.overlay-bright {
    background-color: white;
}
.overlay-bright:before {
    background-color: white;
    filter: alpha(opacity=70);
    -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=70)";
    opacity: 0.7;
}
@media screen {
    .page[class] {
    background-image: url("./assets/geist-background.jpg");
}
}
body.debug:after {
    content: "default";
    position: fixed;
    left: 0;
    bottom: 0;
    background-color: white;
    color: black;
    padding: 0.5em;
    font-size: 10px;
    text-transform: uppercase;
}
@media screen and (max-width: 640px) {
h1 {
    font-size: 2em;
}
ul, ol {
    max-width: none;
}
.page {
    min-width: 300px;
}
.page .container {
    padding: 3em;
}
}
.page .fallback-bg {
    display: none;
}
.ie8 .page .fallback-bg {
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    max-width: inherit;
    z-index: 0;
}