:root {
    --border: #AAA;
    --fill: #FFF6;
}

body {
    font-family: Roboto,Helvetica,Arial,Verdana,sans-serif;
    font-size: 16px;
}

/* INFO: logo */
header picture {
    font-size: 20px;
    line-height: 20px;
    font-weight: bold;
    padding: 10px 15px;
    border: 1px solid var(--border);
    background-color: var(--fill);
    display: inline-block;
    box-sizing: border-box;
}
/* <<< */

main picture,
footer picture,
main video,
main figure {
    padding: 0;
    margin: 0;
    display: block;
    max-width: 100%;
    background-color: var(--fill);
    border: 1px solid var(--border);
    box-sizing: border-box;

    background-repeat: no-repeat;
    background-position: center;

    min-height: 100px;
    min-width: 100px;
}

main picture {
    background-image: url(/svg/wireframe/picture64.svg);
}

main video {
    width: 100%;
    background-image: url(/svg/wireframe/video64.svg);
}

main figure {
    width: 100%;
    background-image: url(/svg/wireframe/user64.svg);
}

.ar1 {
    aspect-ratio: 1 / 1;
}

.ar43 {
    aspect-ratio: 4 / 3;
}

.ar169 {
    aspect-ratio: 16 / 9;
}

picture.thumb { /* INFO: thumb */
    width: 60px;
    background-size: 32px;
}

picture.icon { /* INFO: icon */
    background-image: url(/svg/wireframe/picture32.svg);
    display: inline-block;
    background-size: 24px;
    width: 40px;
    min-width: 40px;
    height: 40px;
    min-height: 40px;
}

figure.face {
    background-image: url(/svg/wireframe/user32.svg);
    display: inline-block;
    background-size: 32px;
    width: 64px;
    min-width: 64px;
    height: 64px;
    min-height: 64px;
}

a.button {
    display: inline-block;
    background-color: var(--fill);
    border: 1px solid var(--border);
    padding: 10px 30px;
}