img {
    max-width: 100%;
    height: auto;
}

.chart {
    margin: 1.5em 0;
}

.chart svg {
    width: 100%;
    height: auto;
    max-width: 640px;
    display: block;
}

.chart svg text {
    fill: currentColor;
}

.chart-source {
    font-size: 0.8em;
    color: currentColor;
    opacity: 0.65;
    margin-top: 0.25em;
}

blockquote {
    border-left: 3px solid currentColor;
    opacity: 0.9;
    padding: 0.2em 1em;
}