I was one of many developers working on making pages for Target.ca.
These pages needed to heavily accessible and conform to WCAG 2.0 standards. Including alt and title tags, contrast levels, logical DOM structure, video captions, function at 200% zoom, screen reader support, etc.
As well, all pages had to work flawlessly at any screen size on every browser (excluding legacy browsers), which included: lightboxes, sliders, video players, images, and text.
We took advantage of Git for version control and working with remote developers, used basic PHP for language files, and an intense LESS CSS setup.