The Stacking Contexts Inspector is a DevTools extension for Google Chrome that allows you to analyse the stacking contexts available on a webpage. This extension will add a new panel to the DevTools and a new sidebar on the elements panel.
Handy for when you’re having stacking issues.
CSS Stacking Context Inspector →
Stacking Contexts Inspector →
☝️ If you’re running “Edgium”, you can use it’s built-in 3D View to visualize the stacking contexts.
Hat tip, Josh!