The D3.js Margin Convention - Responsive & Reusable

Any visualization with axes needs a margin! Why not make it Responsive & Reusable? Previous Video "Responsive Visualization Starter Code with D3.js" : https://www.youtube.com/watch?v=jF1XPXqom_c Resulting code "Responsive Margin Convention": https://datavis.tech/vis/d37c679edd1841509bb670228ac1a637