html, body {
    margin: 0;
    padding: 0;
    
    font-size: 16px;
    line-height: 18px;
}

* {
    vertical-align: top;
    
    font-size: inherit;
    line-height: inherit;
}

a {
    color: #444444;
}

h1 {
    font-size: 28px;
    line-height: normal;
}
h2 {
    font-size: 24px;
    line-height: normal;
}
h3 {
    font-size: 20px;
    line-height: normal;
}


div#columns {
    white-space: nowrap;
}

div#menu {
    display: inline-block;
    white-space: normal;
    
    width: 400px;
    
    margin-left: 1em;
    margin-right: 2em;
}

div#menu div#menu-content {
    margin-top: -3px;
}

div#menu div#menu-content > a[href="#"] {
    cursor: default;
    pointer-events: none;
}


div#menu a {
    display: table;
    
    font-size: 16px;
    padding: 2px 4px;
    
    line-height: 20px;
    
    text-decoration: none;
}

div#menu div.menu-sub {
    margin-left: 1.5em;
}

div#menu div.menu-sub > a {
    margin-bottom: 2px;
    transition: all 0.3s ease-in-out;
}

div#menu div.menu-sub > a:hover,
div#menu div.menu-sub > a.act {
    background-color: #000000;
    color: #ffffff;
}

div#menu div.menu-sub > a.act {
    font-weight: bold;
}


div#menu div.abstract {
    margin-left: 0.6em;
    
    width: 360px;
}

div#menu div.abstract a:hover {
    color: #000000;
}

div#menu div.abstract p {
    font-size: 15px;
    margin-top: 0;
    margin-bottom: 0.5em;
}

div#menu div.abstract a p:after {
    content: "➔";
    display: table;
    font-size: 19px;
}


div#content {
    display: inline-block;
    white-space: normal;
        
    line-height: 1.5;
    
    width: calc(100vw - 400px - 5rem);
    max-width: 720px;
    
/*     background-color: #ffcc00; */
}

div#content a {
    text-decoration: none;
}