hr {
    border: 0;
    clear:both;
    display:block;
    width: 96%;               
    background-color:rgb(81, 62, 75);
    height: 1px;
  }

a:link {
    text-decoration: none;
}

a:visited {
    text-decoration: none;
}

a:hover {
    text-decoration: none;
}

a:active {
    text-decoration: none;
}

pre {
    font-size: 15px;
    border: 1px solid grey-color-light;
    border-radius: 3px;
    background-color: rgb(233, 217, 227);
    color: rgb(24, 22, 24);  
    white-space: pre-wrap;
    margin-top: -30px;
    margin-bottom: -15px;
}

code {
    font-size: 15px;
    background-color: rgb(233, 217, 227);
    color: rgb(24, 22, 24);  
    padding: 4px;
    padding-top: 2px;
    padding-bottom: 2px;
    border-radius: 4px;
}

body {

 background:
        /* top, transparent black, faked with gradient */ 
        linear-gradient(
          rgba(0, 0, 0, 0.5), 
          rgba(0, 0, 0, 0.5)
        ),
        url("/static/images/background.gif");
    background-color: rgb(81, 62, 75);
    font-family: 'Segoe UI', 'Noto Sans', Tahoma, Geneva, Verdana, sans-serif;
}

html, body {
    height: 100%;
    margin: 0;
    
    display: flex;
    flex-direction: column;
}

  
body > * {
    flex-shrink: 0;
}

div {
    margin-top: 5px;
    margin-bottom: 5px;
    padding: 5px;
}

.logo {
    width: 75%;
    height: 75%;
}

.navbar {
    text-align: left;
    justify-content: left;
    flex: none;
    background: rgb(239, 227, 239);
    margin: 0;
    padding-left: 10%;
    padding-right: 10%;
}

.navbar > div {
    font-size:x-large;
}

.websitename {
    text-align: center;
    justify-content: center;
}

.sitemap {
    text-align: right;
    justify-content: center;
    padding-right: 2%;
}

@media screen and (min-device-width: 320px){
    .sitemap {
        flex: 1;
    }

    .websitename {
        flex: 1;
    }

    .sitemaplink {
        flex-direction: row;
        flex: 1;
    }

    .about-paragraph {
        margin-left: -40%;
    }
}

@media screen and (min-device-width: 960px){
    .sitemap {
        flex: 3;
    }

    .websitename {
        flex: 1;
    }

    .sitemaplink {
        flex-direction: column;
        flex: 1;
    }

    .about-flex {
        display: flex;
        flex-direction: column;
    }

    .about-paragraph {
        margin: 0%;
        padding: 0%;
    }
}

.nottitle {
    flex: 8;
}

.column-flex {
    display: flex;
    flex-direction: column;
}

.row-flex {
    display: flex;
    flex-direction: row;
}

.content {
    border-radius: 10px;
    background: rgb(239, 227, 239);
    border: 5px solid rgb(239, 227, 239);
    flex: auto;
    max-width: 87%;
}

@media screen and (min-device-width: 320px){
    .content {
        margin-left: 1%;
        margin-right: 1%;
        padding: 15px;
        padding-left: 5%;
        padding-right: 5%;
    }
    h1 {
        font-size: x-large;
    }
    h2 {
        font-size: larger;
    }
    h3 {
        font-size: large;
    }
    .content p, li {
        font-size: 110%;
    }
}

@media screen and (min-device-width: 960px){
    .content {
        margin-left: 20%;
        margin-right: 20%;
        padding: 30px;
        padding-left: 8.5%;
        padding-right: 8.5%;
    }
    .content p, li {
        font-size: 110%;
    }

    h1 {
        font-size: xx-large;
    }
    h2 {
        font-size: x-large;
    }
    h3 {
        font-size: larger;
    }
}

#about {
    padding-left: 4%;
    padding-right: 4%;
    font-family: 'Noto Sans';
    line-height: 1.5;
}

.content h1, h2, h3, h4 {
    color: rgb(81, 62, 75);
    margin-left: 0;
    margin-right: 0;
    margin-bottom: 0;
    margin-top: 0px;
}

.content p {
    margin-top: 0;
    font-family: 'Noto Sans';
    line-height: 1.5;
}

summary > h2, h3 {
    display:inline-block
}

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

.katex {
    overflow-x: scroll;
    overflow-y: hidden;
}