website/themes/notebook/static/css/main.css

body,html {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    background-image: url("/images/bg-top-left.png"), url("/images/bg-left.png"), url("/images/bg-top.png"), url("/images/bg-tile.png");
    background-position: left top, left top, 64px top, 64px 64px;
    background-repeat: no-repeat, repeat-y, repeat-x, repeat;
}

img {
    max-width: 100%;
    height: auto;
}

img.center {
    display: block;
    margin-left: auto;
    margin-right: auto;
}

/* Bootstrap override */
h1,h2,h3,h4 {
    margin-top: 2rem !important;
    margin-bottom: 2rem !important;
}

.site-title {
    display: inline;
    margin-left: 72px;
    line-height: 64px;
}
.site-subtitle {
    display: none;
    padding-left: 20px;
    font-style: italic;
}
@media(min-width: 576px) {
    .site-subtitle {
        display: inline;
    }
}

.site-title a {
    text-decoration: none;
    color: #000;
}
.site-title a:hover {
    text-decoration: underline;
}

.site-logo {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 9000;
}

#top-nav {
    font-weight: bold;
}

.card {
    background-color: rgba(255, 255, 255, 0.8) !important;
}
/*
#bg-corner {
    position: absolute;
    z-index: -100;
    top: 0;
    left: 0;
    width: 64px;
    height: 64px;
    background-image: url("/images/bg-top-left.png");
}
#bg-top {
    position: absolute;
    z-index: -100;
    top: 0;
    left: 64px;
    right: 0;
    height: 64px;
    background-image: url("/images/bg-top.png");
}
#bg-left {
    position: absolute;
    z-index: -100;
    top: 64px;
    left: 0;
    bottom: 0;
    width: 64px;
    height: 100%;
    background-image: url("/images/bg-left.png");
} */