Stu Maschwitz on Twitter: "By request of the mighty @billybrooks, Prolost Calc can now help you with padding your 3D renders. https://t.co/bkkxENuxiT https://t.co/DPSXNPpsqM" / Twitter
CSS calc()
A Couple of Use Cases for Calc() | CSS-Tricks - CSS-Tricks
Calculating Responsive Margins and Padding | Drupalize.Me