body {
    font-family: "Ubuntu", sans-serif;
    background-color: #242323;
    color: white;
}

@media screen and (min-width: 52em) {
    body {
        max-width: 50em;
        margin-left: auto;
        margin-right: auto;
    }
}

a {
    color: red;
}

h1, h2, h3, h4 {
    color: #b00;
}

h1 {
    border-bottom: 2px solid white;
}

h2 {
    border-bottom: 1px solid #999;
}

h3 {
    border-bottom: 1px solid #aaa;
}

h4 {
    border-bottom: 1px dotted #aaa;
}

img.iconthumb {
    margin: 0.5em;
    border: 2px solid #222;
    border-radius: 0.5em;
    width: 30%;
}