Web Components Best Practices — WebComponents.org
"The following is an initial list of best practices we advocate component authors consider to ensure their elements are good citizens in the Web Component ecosystem."
Responsive Email Patterns
"A collection of patterns & modules for responsive emails"
uncss: Find Unused CSS
"What if there was a tool, however, which would allow you to find unused CSS for a given website? There is, and it's called uncss, a NodeJS powered utility. Let's take a look at how uncss works!"
Browser Support in jQuery 1.12 and Beyond | Official jQuery Blog
"Today and long into the future, jQuery will still contain dozens of browser-specific fixes to normalize behavior. At this point, the most problematic and troublesome browser for jQuery 2.x is the one in Android 2.3."
The Power of em Units in CSS
"this is nothing new and the basic concept has been used by many experienced developers for years — but maybe not so much in the context of web components, or modules."