in src/XAxis.js [135:147]
static getMargin(props) {
const { ticksProps, labelsProps, titleProps } = getAxisChildProps(props);
const margins = [];
if (props.showTicks) margins.push(XTicks.getMargin(ticksProps));
if (props.showTitle && props.title)
margins.push(XAxisTitle.getMargin(titleProps));
if (props.showLabels) margins.push(XAxisLabels.getMargin(labelsProps));
return sumMargins(margins, 'margin');
}