body {
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    font-size: 16px;

    padding:0;
    margin: 0;

    background-color: #f0f0f0;
}

header {
    background-color: white;
    border-radius: 15px;
    margin: 1em;
    padding: 1em;
}

main {
    margin: 1em;
    padding: 1em;
    column-width: 20em;
    column-count: auto;
    column-gap: 2em;
    background-color: white;
    border-radius: 15px;
}

h1, h2, h3 {
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
}

figure {
    margin: 0.8em 0.1em;
}
figcaption {
    font-size: 0.94em;
    font-style: italic;
    text-align: center;
}

img {
    margin: 0 0 0.5em 0;
    max-width: 100%;
}

h1 {
    font-size: 2.5em;
    margin: 0 0 0.5em 0;
}
h2 {
    font-size: 2.2em;
    margin: 0 0 0.5em 0;
}
h3 {
    font-size: 1.4em;
    margin: 0.8em 0 0.5em 0;
}

p {
    padding: 0;
    margin: 0.1em 0 0.5em 0;
    line-height: 1.5em;
    text-align: justify;
}

cite {
    display: block;
    margin: 0.2em 1em 0.5em 1em;
}

.entete {
    font-weight: bold;
    font-size: 1.4em;
    font-style: italic;
}

.auteur, .date {
    font-weight: bold;
}