body {
    background-color: #ffffff;
    color: #000000;
    font-family: Arial, sans-serif;
    font-size: 1rem;
    display: flex;
    flex-direction: column;
    margin: 0;
    padding: 0;
}

hr {
    border-top: 0px;
    border-bottom: 1px solid #565656;
    margin: 40px 100px;
}

p {
    margin: 15px 0px;
}

a {
    /* If you're looking for the color for the glossary words, it's in glossary.js with a note */
    text-decoration: none;
    color: #0066cc;
}

a[href="#"] {
    /* This sets a custom color for links that lead to placeholder # URLs, so you can put placeholders for chapters that aren't out yet */
    color: #565656;
}

ol {
    list-style-type: lower-roman;
}

h2, h3, h4 {
    margin: auto;
    max-width: 650px;
}

h1 {
    margin: 5px;
}

h3 {
    font-style: italic; 
    text-align: center;
}

.index-supertitle {
    text-align: center;
    margin: 20px 0px 0px 0px;
    font-size: .8rem;
}

.index-supertitle a {
    color: #7b7b7b;
}

.indent-sidebar {
    padding-left: 20px;
    max-width: 650px;
    margin: auto;
    border-left: 1px #666 solid;
}

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

.content {
    flex: 3;
    padding: 20px;
}

.sidebar-left, .sidebar-right {
    flex: 1;
    text-align: center;
    min-width: 200px;
    margin-top: 40px;
}

.sidebar-left a[href="#"] {
    font-size: 0px;
}

.sidebar-right a[href="#"] {
    font-size: 0px;
}


.sidebar-left a, .sidebar-right a {
    display: block;
    padding: 50px 0px 0px 0px;
}

.column {
    flex: 1;
    max-width: 50%;
    padding: 10px;
    box-sizing: border-box;
}




@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }
    
    .column {
        max-width: 100%;
    }
    
    .sidebar-left {
        margin-top: 44px;
    }

    .sidebar-right {
        margin-top: 0px;
        margin-bottom: 44px;
    }
    
    .content {
    }
    
    .sidebar-left a {
    display: block;
    padding: 40px 0px 0px 0px;
    }
    
    .sidebar-right a {
    display: block;
    padding: 3px 0px 0px 0px;
    }
}