in static/assets/js/bootstrap.bundle.js [2247:2257]
function getOuterSizes(element) {
var window = element.ownerDocument.defaultView;
var styles = window.getComputedStyle(element);
var x = parseFloat(styles.marginTop || 0) + parseFloat(styles.marginBottom || 0);
var y = parseFloat(styles.marginLeft || 0) + parseFloat(styles.marginRight || 0);
var result = {
width: element.offsetWidth + y,
height: element.offsetHeight + x
};
return result;
}