Announcing new F12 dev tools features in August update - IEBlog - Site Home - MSDN Blogs
"The change bars (different colors for changed properties, added properties, and deleted properties) users have been enjoying the Styles pane, now appear in the Computed styles pane."
HTML5: Network Information API - Tuts+ Code Tutorial
"The Network Information API provides access to the connection type the system is using to communicate with the network, cellular, Wi-Fi, Bluetooth, etc. It also provides a means for scripts to be notified if the connection type changes."
A Complete Guide to Grid | CSS-Tricks
"This article is in-progress. We're trying to stay on-top of grid layout and make sure we have some information about it. But know that grid is extremely new, not well supported, and in-flux in browserland still."
Styleguide Driven Development - We build Envato
"Having a styleguide that documents all the possible scenarios for a view is a tremendously powerful asset."
CSS Guidelines – High-level advice and guidelines for writing sane, manageable, scalable CSS
"More ‘truthful’ and reliable diffs, because one line only ever carries one change."