img.diagram {
    display: block;
    width: 100%;
    max-width: 100%;
    height: auto;
    margin: 1.5rem auto 2rem;
}

img.diagram-medium {
    max-width: min(100%, 58rem);
}

img.diagram-compact {
    max-width: min(100%, 48rem);
}

img.diagram-narrow {
    max-width: min(100%, 34rem);
}