body {
    margin: 0;
    padding: 0;
    font-family: Arial, Helvetica, sans-serif;
}

.css-history {
    width: 100%;
    box-sizing: border-box;

    /* Four-column layout */
    column-count: 4;
    column-gap: 30px;

    /* Border around article text */
    border: 3px solid black;

    /* Makes text easier to read */
    padding: 20px;
    line-height: 1.5;
}

p {
    margin-top: 0;
    margin-bottom: 20px;
}

/* Google Font #1 */
.history-title {
    font-family: "Roboto Slab", serif;
    font-size: 30px;
    column-span: all;
}

/* Google Font #2 */
.adoption-title {
    font-family: "Oswald", sans-serif;
    font-size: 30px;
    column-span: all;
}

.source {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
    margin: 15px;

    /* Required text shadow */
    text-shadow: 2px 2px 3px gray;
}