Chart with your own margins around its whole container(CSS margin tag) [jsChart type="scatterbubble" height=350 width=600 margin='10px 10px 100px 200px' backgroundcolor='darkgray']
Chart with own margins around chart itself(D3's margin settings) [jsChart type="Pie" options="{ margin:{left: 70, bottom: 10}, showLegend: false }" backgroundcolor='darkgray']